// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

edition = "2023";

package optimization_guide.proto;

option java_outer_classname = "CommonFeatureDataProto";

option java_package = "org.chromium.components.optimization_guide.features.proto";

option optimize_for = LITE_RUNTIME;

// DO NOT EDIT THIS FILE DIRECTLY!
//
// This file is generated in g3 and then synced to Chrome. Instead, please refer to
// http://go/chrome-mqls-onboarding (Google-internal link), and then changes will
// be synced with Chrome automatically.

// Next ID: 2
message FloatArray {
  repeated float values = 1;
}

// Next ID: 2
message Embedding {
  // The embedding vector. Note that future versions of this proto might not
  // have this field set, as a new field may be added for quantized embeddings.
  FloatArray floats = 1 [features = { field_presence: EXPLICIT }];
}

// Accessibility tree snapshot
// See
// https://source.chromium.org/chromium/chromium/src/+/main:ui/accessibility/ax_tree_update.h
// for details of this and related messages.
//
// Next ID: 4
message AXTreeUpdate {
  AXTreeData tree_data = 1 [features = { field_presence: EXPLICIT }];

  uint32 root_id = 2 [features = { field_presence: EXPLICIT }];

  repeated AXNodeData nodes = 3;
}

// AX tree metadata, part of the a11y snapshot.
// Next ID: 16
message AXTreeData {
  string doctype = 1 [features = { field_presence: EXPLICIT }];

  bool loaded = 2 [features = { field_presence: EXPLICIT }];

  float loading_progress = 3 [features = { field_presence: EXPLICIT }];

  string mimetype = 4 [features = { field_presence: EXPLICIT }];

  string title = 5 [features = { field_presence: EXPLICIT }];

  uint32 focus_id = 6 [features = { field_presence: EXPLICIT }];

  bool sel_is_backward = 7 [features = { field_presence: EXPLICIT }];

  uint32 sel_anchor_object_id = 8 [features = { field_presence: EXPLICIT }];

  uint32 sel_anchor_offset = 9 [features = { field_presence: EXPLICIT }];

  AXTextAffinity sel_anchor_affinity = 10 [features = { field_presence: EXPLICIT }];

  uint32 sel_focus_object_id = 11 [features = { field_presence: EXPLICIT }];

  uint32 sel_focus_offset = 12 [features = { field_presence: EXPLICIT }];

  AXTextAffinity sel_focus_affinity = 13 [features = { field_presence: EXPLICIT }];

  uint32 root_scroller_id = 14 [features = { field_presence: EXPLICIT }];

  repeated string metadata = 15;
}

// Per node accessibility data, part of the a11y snapshot.
// Next ID: 8
message AXNodeData {
  uint32 id = 1 [features = { field_presence: EXPLICIT }];

  AXRole role = 2 [features = { field_presence: EXPLICIT }];

  uint32 state = 3 [features = { field_presence: EXPLICIT }];

  uint64 actions = 4 [features = { field_presence: EXPLICIT }];

  repeated AXAttribute attributes = 5;

  repeated int32 child_ids = 6;

  AXRelativeBounds relative_bounds = 7 [features = { field_presence: EXPLICIT }];
}

// AX node attribute, part of the a11y snapshot.
// Next ID: 15
message AXAttribute {
  oneof attribute_key {
    AXStringAttribute string_type = 1;

    AXIntAttribute int_type = 2;

    AXFloatAttribute float_type = 3;

    AXBoolAttribute bool_type = 4;

    AXIntListAttribute intlist_type = 5;

    AXStringListAttribute stringlist_type = 6;

    string html_attribute_name = 7;
  }

  oneof attribute_value {
    string string_value = 8;

    int32 int_value = 9;

    float float_value = 10;

    bool bool_value = 11;

    AXIntList int_list_value = 12;

    AXStringList string_list_value = 13;

    string html_attribute_value = 14;
  }
}

// Helper message for AX IntList.
message AXIntList {
  repeated int32 value = 1;
}

// Helper message for AX StringList.
message AXStringList {
  repeated string value = 1;
}

// AX Relative bounds.
// Next ID: 7
message AXRelativeBounds {
  int32 offset_container_id = 1 [features = { field_presence: EXPLICIT }];

  float x = 2 [features = { field_presence: EXPLICIT }];

  float y = 3 [features = { field_presence: EXPLICIT }];

  float width = 4 [features = { field_presence: EXPLICIT }];

  float height = 5 [features = { field_presence: EXPLICIT }];

  // If present, represents the transform as 16 floats.
  repeated float transform = 6;
}

// Next ID: 11
message PageContext {
  // The URL of the page that the form is on.
  string url = 1 [features = { field_presence: EXPLICIT }];

  // The title of the page that the form is on.
  string title = 2 [features = { field_presence: EXPLICIT }];

  // The AX tree representation of the page.
  AXTreeUpdate ax_tree_data = 3 [features = { field_presence: EXPLICIT }];

  // The inner text of the page the model is acting on (excluding x-origin
  // frames).
  string inner_text = 4 [features = { field_presence: EXPLICIT }];

  // The offset of the focused element into the |inner_text|.
  uint64 inner_text_offset = 5 [features = { field_presence: EXPLICIT }];

  // The text passages of the page. Those passages are the result of the
  // HtmlChunker algorithm implemented in Chrome (used by the History Search
  // feature). See
  // https://github.com/google/labs-prototypes/tree/main/seeds/chunker-python
  repeated string page_passages = 9;

  // A base64 encoded PNG of the tab screenshot.
  string tab_screenshot = 6 [features = { field_presence: EXPLICIT }];

  // The base64 encoded PDF representation of the page.
  string pdf_data = 7 [features = { field_presence: EXPLICIT }];

  // The page content represented as a tree of semantic chunks and (in the
  // future) annotated with additional information about the page.
  AnnotatedPageContent annotated_page_content = 8 [features = { field_presence: EXPLICIT }];
}

// The page content represented as a tree of semantic chunks and (in the
// future) annotated with additional information about the page.
// Next ID: 7
message AnnotatedPageContent {
  // The version of the proto. Each time a backwards incompatible change is made
  // to the proto, the version should be incremented.
  AnnotatedPageContentVersion version = 1 [features = { field_presence: EXPLICIT }];

  // The mode used to extract this proto. The data in the proto depends on the
  // mode. See comments to understand which data is available for each mode.
  AnnotatedPageContentMode mode = 6 [features = { field_presence: EXPLICIT }];

  // The root node of the ContentNode tree.
  ContentNode root_node = 2 [features = { field_presence: EXPLICIT }];

  // The data for the main frame of the page.
  FrameData main_frame_data = 3 [features = { field_presence: EXPLICIT }];

  // The interaction information for the page--the subtree represented by the
  // AnnotatedPageContent. This is for top-level interactions, such as the mouse
  // position and focused element, for which there can only be one unique value
  // for the entire page. Includes interaction information for the main frame
  // and embedded iframes.
  PageInteractionInfo page_interaction_info = 4 [features = { field_presence: EXPLICIT }];

  // The rect of the viewport for the tab. i.e., screenshot dimensions.
  // Dimensions are in captured pixels.
  BoundingRect viewport_geometry = 5 [features = { field_presence: EXPLICIT }];
}

// The ContentNode tree is a sparse representation of the DOM tree for a web
// page, i.e., not every DOM node generates a ContentNode. For example, a `div`
// used only for styling or layout the subtree will not generate a ContentNode.
//
// The ContentNode is roughly 1:1 with a DOM node but there are exceptions:
//
// - Some DOM nodes can generate multiple ContentNodes. For example, a
//   `::before` pseudo-element would have text and image ContentNodes for it's
//   content specified in CSS.
//
// - A form with `<input type="image">` will have ContentNodes for the input
//   element and it's image.
//
// - We currently don't coalesce text content from multiple DOM nodes into a
//   single ContentNode but that maybe added in the future.
//
// Note: The ContentNode tree including content from all embedded iframes.
// Next ID: 3
message ContentNode {
  // Note: CONTENT_ATTRIBUTE_TEXT and CONTENT_ATTRIBUTE_IMAGE are leaf nodes
  // which don't have any children nodes.
  repeated ContentNode children_nodes = 1;

  ContentAttributes content_attributes = 2 [features = { field_presence: EXPLICIT }];
}

// Next ID: 28
message ContentAttributes {
  oneof content_data {
    // Only set if attribute_type is CONTENT_ATTRIBUTE_TEXT.
    TextInfo text_data = 10;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_IMAGE.
    ImageInfo image_data = 11;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_SVG.
    SVGData svg_data = 23;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_CANVAS.
    CanvasData canvas_data = 24;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_VIDEO.
    VideoData video_data = 27;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_ANCHOR.
    AnchorData anchor_data = 14;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_FORM.
    FormInfo form_data = 19;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_FORM_CONTROL.
    FormControlData form_control_data = 20;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_TABLE.
    TableData table_data = 8;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_IFRAME.
    IframeData iframe_data = 9;

    // Only set if attribute_type is CONTENT_ATTRIBUTE_TABLE_ROW.
    TableRowData table_row_data = 13;
  }

  // If this content node has the content of an entire subtree, this is the ID
  // of the common ancestor of all the nodes in the subtree.
  int32 common_ancestor_dom_node_id = 2 [features = { field_presence: EXPLICIT }];

  ContentAttributeType attribute_type = 3 [features = { field_presence: EXPLICIT }];

  // This is the geometry of the common_ancestor_dom_node_id.
  Geometry geometry = 4 [features = { field_presence: EXPLICIT }];

  // The interaction information for the content node.
  // Note: The information in InteractionInfo is configured based on the
  // AnnotatedPageContentMode. See comments on the message definition for
  // details.
  InteractionInfo interaction_info = 21 [features = { field_presence: EXPLICIT }];

  // These can come from the aria role, the html tag, or are assumed from some
  // properties of the page.
  repeated AnnotatedRole annotated_roles = 15;

  // A textual description of the content node from sources that may not be part
  // of the tree because the content is not rendered. For example, `aria-label`
  // and `aria-labelledby` attributes.
  //
  // Only populated for ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS.`
  string label = 16 [features = { field_presence: EXPLICIT }];

  // If this is a label node associated with an input node using `for`, provides
  // the DOM node ID of the input node. This will match the
  // `common_ancestor_dom_node_id` of the ContentNode of the input node, if it
  // exists.
  // Note: The label may be an ancestor of the input node.
  //
  // Only populated for ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS.
  int32 label_for_dom_node_id = 25 [features = { field_presence: EXPLICIT }];

  // The role of this ContentNode derived from the aria-role attribute.
  //
  // Only populated for ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS.
  AXRole aria_role = 26 [features = { field_presence: EXPLICIT }];

  reserved 5, 6, 7, 17, 18, 1, 22;
}

// The geometry of the content, in the page coordinate system.
// Next ID: 6
// NOTE: If `visual_bounding_box` is empty, i.e., the content is offscreen and
// it's in an iframe, the `outer_bounding_box` may be incorrect. See crbug.com/384996050
// for details.
//
// Only populated for ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS.
message Geometry {
  // The bounding box of the content node, in the page coordinate system. This
  // roughly corresponds to the element's local box used for hit testing.
  BoundingRect outer_bounding_box = 1 [features = { field_presence: EXPLICIT }];

  // Denotes which subset of this node is visible, in the page coordinate
  // system. If the content is offscreen, this field will be empty.
  BoundingRect visible_bounding_box = 2 [features = { field_presence: EXPLICIT }];

  // Whether the content node is fixed or sticky position. This may suggest
  // that the node is a header, footer, or sidebar.
  bool is_fixed_or_sticky_position = 3 [features = { field_presence: EXPLICIT }];

  reserved 4, 5;
}

message BoundingRect {
  int32 x = 1 [features = { field_presence: EXPLICIT }];

  int32 y = 2 [features = { field_presence: EXPLICIT }];

  int32 width = 3 [features = { field_presence: EXPLICIT }];

  int32 height = 4 [features = { field_presence: EXPLICIT }];
}

// The interaction information for the content node. This indicates whether the
// node is interactive and what type of interaction it supports.
//
// Note: ScrollerInfo is populated for ANNOTATED_PAGE_CONTENT_MODE_DEFAULT. The
// rest of the fields are only populated for
// ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS.
// Next ID: 15
message InteractionInfo {
  // Set if the content node is scrollable.
  ScrollerInfo scroller_info = 12 [features = { field_presence: EXPLICIT }];

  // Whether the content node is selectable.
  bool is_selectable = 3 [features = { field_presence: EXPLICIT }];

  // Whether the content node is editable; i.e. whether the user can type into
  // it. This refers to the text actually being editable, not whether the
  // content node is a text field.
  bool is_editable = 4 [features = { field_presence: EXPLICIT }];

  // Whether the content node can be resized. This is relevant for scroll
  // containers and iframes which have the CSS resize behavior.
  bool can_resize_horizontal = 5 [features = { field_presence: EXPLICIT }];

  bool can_resize_vertical = 6 [features = { field_presence: EXPLICIT }];

  // Whether the content node is focusable.
  bool is_focusable = 7 [features = { field_presence: EXPLICIT }];

  // Whether the content node is draggable.
  bool is_draggable = 9 [features = { field_presence: EXPLICIT }];

  // Whether the content node is clickable. This checks for whether the node is
  // a clickable control (e.g. form control elements) or has activation
  // behavior. It also checks for whether the node has a click handler.
  bool is_clickable = 10 [features = { field_presence: EXPLICIT }];

  // The z-order of the content node relative to other nodes in the same
  // Document. A higher value means the node is in front of other nodes with
  // lower values.
  //
  // Since all content within a Document is rendered as a single layer, nodes
  // behind the iframe in the embedder draw behind all nodes inside the
  // iframe's Document (similar for nodes on top of the iframe node).
  //
  // Note: This value is only set for nodes in the viewport.
  int32 document_scoped_z_order = 13 [features = { field_presence: EXPLICIT }];

  // If this node is detected to be is_clickable, provides the reason which
  // caused that.
  // Note: This may not capture all the reasons.
  repeated ClickabilityReason debug_clickability_reasons = 14;

  reserved 8, 1, 2, 11;
}

// The coordinate space for the dimensions here is physical coordinates (not
// logical coordinates). This means it's the same irrespective of the writing
// mode.
// The dimensions also exclude non-overlay scrollbars.
message ScrollerInfo {
  // The complete layout dimensions of the scroller. This is the total area
  // that can be revealed through a scroll operation.
  BoundingSize scrolling_bounds = 1 [features = { field_presence: EXPLICIT }];

  // The subset of this scroller's content which is currently scrolled to. This
  // is relative to the origin of `scrolling_bounds`.
  BoundingRect visible_area = 2 [features = { field_presence: EXPLICIT }];

  // Indicates whether this can be scrolled by the user in horizontal or
  // vertical directions. These nodes can still be scrolled by script.
  bool user_scrollable_horizontal = 3 [features = { field_presence: EXPLICIT }];

  bool user_scrollable_vertical = 4 [features = { field_presence: EXPLICIT }];
}

message BoundingSize {
  int32 width = 1 [features = { field_presence: EXPLICIT }];

  int32 height = 2 [features = { field_presence: EXPLICIT }];
}

// Next ID: 5
message TextInfo {
  string text_content = 1 [features = { field_presence: EXPLICIT }];

  TextStyle text_style = 3 [features = { field_presence: EXPLICIT }];

  reserved 2, 4;
}

// Next ID: 5
message TextStyle {
  // A crude approximation of text size. The default is M. An ML model doesn't
  // need to know the precise size of the text; it just needs to know whether
  // it's relatively small or large. The default is M.
  TextSize text_size = 1 [features = { field_presence: EXPLICIT }];

  // Whether the text has inline semantics that denote emphasis. For example:
  // bold, italics, underline, super/subscript, etc. An ML model doesn't need
  // to know which specific semantic was used; only that the website author
  // chose to emphasize the text in some way. The default is false.
  bool has_emphasis = 2 [features = { field_presence: EXPLICIT }];

  // The color of the text in RGBA format.
  uint32 color = 3 [features = { field_presence: EXPLICIT }];
}

// Information about the image. In the future, this may include a pixmap.
// Next ID: 5
message ImageInfo {
  string image_caption = 2 [features = { field_presence: EXPLICIT }];

  // Provides the source origin for the image.
  SecurityOrigin security_origin = 4 [features = { field_presence: EXPLICIT }];

  reserved 1, 3;
}

// The source origin for the web content in AnnotatedPageContent. This maps to
// the origin concept in the spec: https://url.spec.whatwg.org/#origin.
//
// This is distinct from URLs. There are cases where the URL for a Document,
// example about:blank, is different from the origin that the Document's data
// should be attributed to.
//
// Next ID: 3
message SecurityOrigin {
  // Whether the origin is opaque.
  bool opaque = 1 [features = { field_presence: EXPLICIT }];

  // The raw value of the origin. It is set to the nonce for opaque origins and
  // scheme-host-port string for non-opaque origins.
  string value = 2 [features = { field_presence: EXPLICIT }];
}

message SVGData {
  // The inner text for the SVG subtree.
  string inner_text = 1 [features = { field_presence: EXPLICIT }];
}

message CanvasData {
  int32 layout_width = 1 [features = { field_presence: EXPLICIT }];

  int32 layout_height = 2 [features = { field_presence: EXPLICIT }];
}

message VideoData {
  // The URL of the video.
  string url = 1 [features = { field_presence: EXPLICIT }];

  // The source origin for the video.
  SecurityOrigin security_origin = 2 [features = { field_presence: EXPLICIT }];
}

message AnchorData {
  string url = 1 [features = { field_presence: EXPLICIT }];

  // The relationship between the linked URL and the current document.
  repeated AnchorRel rel = 2;
}

message FormInfo {
  // The of the form.
  string form_name = 1 [features = { field_presence: EXPLICIT }];
}

// Next ID: 8
message FormControlData {
  // The name for the field.
  string field_name = 1 [features = { field_presence: EXPLICIT }];

  // The value of the field.
  string field_value = 2 [features = { field_presence: EXPLICIT }];

  // The type of control for this form field.
  FormControlType form_control_type = 3 [features = { field_presence: EXPLICIT }];

  // The options for a select field, if applicable.
  repeated SelectOption select_options = 4;

  // The placeholder text for the field. This is only applicable to text fields.
  string placeholder = 5 [features = { field_presence: EXPLICIT }];

  // Whether the field is checked. This is only applicable to checkbox and radio
  // button fields.
  bool is_checked = 6 [features = { field_presence: EXPLICIT }];

  // Whether the field is required.
  bool is_required = 7 [features = { field_presence: EXPLICIT }];
}

// Represents an option in a select field. See below for example.
//
// HTML                                      | value  | text
// ------------------------------------------+--------+------
// <option value=Foo label=Bar>Baz</option>  | "Foo"  | "Bar"
// <option value=Foo>Bar</option>            | "Foo"  | "Bar"
// <option label=Bar>Foo</option>            | "Foo"  | "Bar"
// <option>Foo</option>                      | "Foo"  | "Foo"
// <option value=Foo></option>               | "Foo"  | ""
// <option label=Bar></option>               | ""     | "Bar"
message SelectOption {
  string value = 1 [features = { field_presence: EXPLICIT }];

  string text = 2 [features = { field_presence: EXPLICIT }];

  // Whether the option is selected.
  // Not set for FormsAI purposes, but used in PCA.
  bool is_selected = 3 [features = { field_presence: EXPLICIT }];

  // Whether the option is disabled.
  // Not set for FormsAI purposes, but used in PCA.
  bool is_disabled = 4 [features = { field_presence: EXPLICIT }];
}

message TableData {
  // The name of the table, coming from the caption.
  string table_name = 1 [features = { field_presence: EXPLICIT }];

  reserved 2, 3, 4;
}

message IframeData {
  FrameData frame_data = 3 [features = { field_presence: EXPLICIT }];

  // Indicates whether the iframe is likely to be an ad frame. This is set for
  // both the root ad frame and its descendants.
  bool likely_ad_frame = 2 [features = { field_presence: EXPLICIT }];

  reserved 1;
}

// The data for a frame in the web page. This is the common data structure for
// both the root frame and embedded iframes.
// Next ID: 8
message FrameData {
  // The security origin of the frame.
  SecurityOrigin security_origin = 1 [features = { field_presence: EXPLICIT }];

  // Interaction information for the frame.
  FrameInteractionInfo frame_interaction_info = 2 [features = { field_presence: EXPLICIT }];

  // Identifies the document in a frame.
  DocumentIdentifier document_identifier = 3 [features = { field_presence: EXPLICIT }];

  // The URL of the frame.
  string url = 4 [features = { field_presence: EXPLICIT }];

  // The title of the frame.
  string title = 5 [features = { field_presence: EXPLICIT }];

  // Information about paid content in the frame.  Only set
  // if paid content was checked.
  PaidContentMetadata paid_content_metadata = 6 [features = { field_presence: EXPLICIT }];

  reserved 7;
}

// The interaction information for the frame. This is for interactions that
// are specific to the frame, such as the current selection.
// Next ID: 2
message FrameInteractionInfo {
  // The current selection.
  Selection selection = 1 [features = { field_presence: EXPLICIT }];
}

// Represents a selection in the page. This is a frame-level concept.
message Selection {
  // The content node ID of the start node. Note that this could be the same as
  // the end node ID. This node is always before or equal to the end node.
  int32 start_node_id = 1 [features = { field_presence: EXPLICIT }];

  // The character offset of the start of the selection from the start of the
  // text contained in start node.
  int32 start_offset = 2 [features = { field_presence: EXPLICIT }];

  // The content node ID of the end node. Note that this could be the same as
  // the start node ID. This node is always after or equal to the start node.
  int32 end_node_id = 3 [features = { field_presence: EXPLICIT }];

  // The character offset of the end of the selection from the start of the
  // text contained in end node.
  int32 end_offset = 4 [features = { field_presence: EXPLICIT }];

  // The selected text.
  string selected_text = 5 [features = { field_presence: EXPLICIT }];
}

// Directs the action to a specific Document in a frame in Chrome.
// Next ID: 3
message DocumentIdentifier {
  // A unique identifier for the frame that is not stable across APC
  // calls/pages. Caller can map these to a client side frame id.
  string serialized_token = 1 [features = { field_presence: EXPLICIT }];
}

// Metadata about paid content in the frame.
// Next ID: 2
message PaidContentMetadata {
  // Whether the frame contains paid content.
  bool contains_paid_content = 1 [features = { field_presence: EXPLICIT }];
}

message TableRowData {
  TableRowType type = 1 [features = { field_presence: EXPLICIT }];
}

// Represents the interaction information for the page. This is for top-level
// interactions, such as the mouse position and focused element, for which
// there can only be one unique value. Includes interaction information for
// the main frame and embedded iframes.
// Next ID: 4
message PageInteractionInfo {
  // The content node ID of the content node that is currently focused.
  int32 focused_node_id = 1 [features = { field_presence: EXPLICIT }];

  // The content node ID of the content node that is currently focused by a
  // screen reader. If this is set, it means that a screen reader is being used.
  int32 accessibility_focused_node_id = 2 [features = { field_presence: EXPLICIT }];

  // The last known mouse position, in the page coordinate system.
  Point mouse_position = 3 [features = { field_presence: EXPLICIT }];
}

message Point {
  int32 x = 1 [features = { field_presence: EXPLICIT }];

  int32 y = 2 [features = { field_presence: EXPLICIT }];
}

// Uniquely identifies a DOM elements across all frames.
message AutofillGlobalId {
  string frame_token = 1 [features = { field_presence: EXPLICIT }];

  uint64 renderer_id = 2 [features = { field_presence: EXPLICIT }];
}

message FormData {
  // The name by which autofill knows this form. This is generally either the
  // name attribute or the id_attribute value, which-ever is non-empty with
  // priority given to the name_attribute.
  string form_name = 1 [features = { field_presence: EXPLICIT }];

  // The fields contained in this form.
  repeated FormFieldData fields = 2;

  // Only set during data collection, not in prediction requests.
  AutofillGlobalId global_id = 3 [features = { field_presence: EXPLICIT }];

  // Autofill's internal identifier for the form. Can change when the form
  // changes dynamically.
  // Only set during data collection, not in prediction requests.
  uint64 form_signature = 4 [features = { field_presence: EXPLICIT }];
}

// Next ID: 14
message FormFieldData {
  // The name for the field.
  string field_name = 1 [features = { field_presence: EXPLICIT }];

  // The label for the field.
  string field_label = 2 [features = { field_presence: EXPLICIT }];

  string field_value = 3 [
    deprecated = true,
    features = { field_presence: EXPLICIT }
  ];

  bool is_visible = 4 [
    deprecated = true,
    features = { field_presence: EXPLICIT }
  ];

  // Whether the field is focusable.
  // Only set during data collection, not in prediction requests.
  bool is_focusable = 5 [features = { field_presence: EXPLICIT }];

  // The type of control for this form field.
  FormControlType form_control_type = 6 [features = { field_presence: EXPLICIT }];

  // The options for a select field, if applicable.
  repeated SelectOption select_options = 7;

  // The placeholder text for the field.
  string placeholder = 8 [features = { field_presence: EXPLICIT }];

  // The AX node ID of the form control for this field.
  int32 form_control_ax_node_id = 9 [features = { field_presence: EXPLICIT }];

  bool is_eligible = 10 [
    deprecated = true,
    features = { field_presence: EXPLICIT }
  ];

  // Only set during data collection, not in prediction requests.
  AutofillGlobalId global_id = 11 [features = { field_presence: EXPLICIT }];

  // Autofill's internal identifier for the field. Can change when the form
  // changes dynamically.
  // Only set during data collection, not in prediction requests.
  uint32 field_signature = 12 [features = { field_presence: EXPLICIT }];

  // The text of the elements denoted by the aria-labelledby attribute of field
  // or the value of its aria-label attribute, with priority given to the
  // aria-labelledby attribute.
  // TODO(crbug.com/389631485): The client doesn't set this for model requests at the
  // moment. But it can and should be used for inference since it is contained
  // in the metadata pipeline.
  string aria_label = 13 [features = { field_presence: EXPLICIT }];
}

message TableRow {
  repeated ContentNode cells = 1;
}

message UserAnnotationsEntry {
  // The row ID of this entry from the user annotations database. This is
  // immutable except when retrieving the row from the database.
  int64 entry_id = 1 [features = { field_presence: EXPLICIT }];

  // The key for this entry. Not necessarily unique.
  string key = 2 [features = { field_presence: EXPLICIT }];

  // The value for this entry.
  string value = 3 [features = { field_presence: EXPLICIT }];
}

message TabGroup {
  // The label that describes this tab group.
  string label = 1 [features = { field_presence: EXPLICIT }];

  // The tabs that belong in this group.
  repeated Tab tabs = 2;

  // The id of the pre-existing tab group this corresponds to, if any.
  string group_id = 3 [features = { field_presence: EXPLICIT }];
}

message Tab {
  // A unique identifier for the tab.
  int64 tab_id = 1 [features = { field_presence: EXPLICIT }];

  // The title of the tab.
  string title = 2 [features = { field_presence: EXPLICIT }];

  // The URL of the tab.
  string url = 3 [features = { field_presence: EXPLICIT }];

  // The page context of the tab.
  PageContext page_context = 4 [features = { field_presence: EXPLICIT }];
}

// The site engagement information for a single site.
message SiteEngagementEntry {
  // The URL of the site.
  string url = 1 [features = { field_presence: EXPLICIT }];

  // On a scale of 0 to 100, the relative score of engagement with the site.
  float score = 2 [features = { field_presence: EXPLICIT }];
}

// The site engagement information for the user.
message SiteEngagement {
  // The site engagement information for the user.
  repeated SiteEngagementEntry entries = 1;
}

// The coordinates of a point.
// Next ID: 3
message Coordinate {
  int32 x = 1 [features = { field_presence: EXPLICIT }];

  int32 y = 2 [features = { field_presence: EXPLICIT }];
}

// Selection text affinity, part of the a11y snapshot.
// Next ID: 3
enum AXTextAffinity {
  AX_TEXT_AFFINITY_NONE = 0;

  AX_TEXT_AFFINITY_DOWNSTREAM = 1;

  AX_TEXT_AFFINITY_UPSTREAM = 2;
}

// AX Role.
// Next ID: 213
enum AXRole {
  AX_ROLE_NONE = 0;

  AX_ROLE_ABBR = 1;

  AX_ROLE_ALERT = 2;

  AX_ROLE_ALERTDIALOG = 3;

  AX_ROLE_APPLICATION = 4;

  AX_ROLE_ARTICLE = 5;

  AX_ROLE_AUDIO = 6;

  AX_ROLE_BANNER = 7;

  AX_ROLE_BLOCKQUOTE = 8;

  AX_ROLE_BUTTON = 9;

  AX_ROLE_CANVAS = 10;

  AX_ROLE_CAPTION = 11;

  AX_ROLE_CARET = 12;

  AX_ROLE_CELL = 13;

  AX_ROLE_CHECKBOX = 14;

  AX_ROLE_CLIENT = 15;

  AX_ROLE_CODE = 16;

  AX_ROLE_COLORWELL = 17;

  AX_ROLE_COLUMN = 18;

  AX_ROLE_COLUMNHEADER = 19;

  AX_ROLE_COMBOBOXGROUPING = 20;

  AX_ROLE_COMBOBOXMENUBUTTON = 21;

  AX_ROLE_COMPLEMENTARY = 22;

  AX_ROLE_COMMENT = 23;

  AX_ROLE_CONTENTDELETION = 24;

  AX_ROLE_CONTENTINSERTION = 25;

  AX_ROLE_CONTENTINFO = 26;

  AX_ROLE_DATE = 27;

  AX_ROLE_DATETIME = 28;

  AX_ROLE_DEFINITION = 29;

  AX_ROLE_DESCRIPTIONLIST = 30;

  AX_ROLE_DESCRIPTIONLISTDETAILDEPRECATED = 31;

  AX_ROLE_DESCRIPTIONLISTTERMDEPRECATED = 32;

  AX_ROLE_DESKTOP = 33;

  AX_ROLE_DETAILS = 34;

  AX_ROLE_DIALOG = 35;

  AX_ROLE_DIRECTORYDEPRECATED = 36;

  AX_ROLE_DISCLOSURETRIANGLE = 37;

  AX_ROLE_DOCABSTRACT = 38;

  AX_ROLE_DOCACKNOWLEDGMENTS = 39;

  AX_ROLE_DOCAFTERWORD = 40;

  AX_ROLE_DOCAPPENDIX = 41;

  AX_ROLE_DOCBACKLINK = 42;

  AX_ROLE_DOCBIBLIOENTRY = 43;

  AX_ROLE_DOCBIBLIOGRAPHY = 44;

  AX_ROLE_DOCBIBLIOREF = 45;

  AX_ROLE_DOCCHAPTER = 46;

  AX_ROLE_DOCCOLOPHON = 47;

  AX_ROLE_DOCCONCLUSION = 48;

  AX_ROLE_DOCCOVER = 49;

  AX_ROLE_DOCCREDIT = 50;

  AX_ROLE_DOCCREDITS = 51;

  AX_ROLE_DOCDEDICATION = 52;

  AX_ROLE_DOCENDNOTE = 53;

  AX_ROLE_DOCENDNOTES = 54;

  AX_ROLE_DOCEPIGRAPH = 55;

  AX_ROLE_DOCEPILOGUE = 56;

  AX_ROLE_DOCERRATA = 57;

  AX_ROLE_DOCEXAMPLE = 58;

  AX_ROLE_DOCFOOTNOTE = 59;

  AX_ROLE_DOCFOREWORD = 60;

  AX_ROLE_DOCGLOSSARY = 61;

  AX_ROLE_DOCGLOSSREF = 62;

  AX_ROLE_DOCINDEX = 63;

  AX_ROLE_DOCINTRODUCTION = 64;

  AX_ROLE_DOCNOTEREF = 65;

  AX_ROLE_DOCNOTICE = 66;

  AX_ROLE_DOCPAGEBREAK = 67;

  AX_ROLE_DOCPAGEFOOTER = 68;

  AX_ROLE_DOCPAGEHEADER = 69;

  AX_ROLE_DOCPAGELIST = 70;

  AX_ROLE_DOCPART = 71;

  AX_ROLE_DOCPREFACE = 72;

  AX_ROLE_DOCPROLOGUE = 73;

  AX_ROLE_DOCPULLQUOTE = 74;

  AX_ROLE_DOCQNA = 75;

  AX_ROLE_DOCSUBTITLE = 76;

  AX_ROLE_DOCTIP = 77;

  AX_ROLE_DOCTOC = 78;

  AX_ROLE_DOCUMENT = 79;

  AX_ROLE_EMBEDDEDOBJECT = 80;

  AX_ROLE_EMPHASIS = 81;

  AX_ROLE_FEED = 82;

  AX_ROLE_FIGCAPTION = 83;

  AX_ROLE_FIGURE = 84;

  AX_ROLE_FOOTER = 85;

  AX_ROLE_SECTIONFOOTER = 86;

  AX_ROLE_FORM = 87;

  AX_ROLE_GENERICCONTAINER = 88;

  AX_ROLE_GRAPHICSDOCUMENT = 89;

  AX_ROLE_GRAPHICSOBJECT = 90;

  AX_ROLE_GRAPHICSSYMBOL = 91;

  AX_ROLE_GRID = 92;

  AX_ROLE_GROUP = 93;

  AX_ROLE_HEADER = 94;

  AX_ROLE_SECTIONHEADER = 95;

  AX_ROLE_HEADING = 96;

  AX_ROLE_IFRAME = 97;

  AX_ROLE_IFRAMEPRESENTATIONAL = 98;

  AX_ROLE_IMAGE = 99;

  AX_ROLE_IMECANDIDATE = 100;

  AX_ROLE_INLINETEXTBOX = 101;

  AX_ROLE_INPUTTIME = 102;

  AX_ROLE_KEYBOARD = 103;

  AX_ROLE_LABELTEXT = 104;

  AX_ROLE_LAYOUTTABLE = 105;

  AX_ROLE_LAYOUTTABLECELL = 106;

  AX_ROLE_LAYOUTTABLEROW = 107;

  AX_ROLE_LEGEND = 108;

  AX_ROLE_LINEBREAK = 109;

  AX_ROLE_LINK = 110;

  AX_ROLE_LIST = 111;

  AX_ROLE_LISTBOX = 112;

  AX_ROLE_LISTBOXOPTION = 113;

  AX_ROLE_LISTGRID = 114;

  AX_ROLE_LISTITEM = 115;

  AX_ROLE_LISTMARKER = 116;

  AX_ROLE_LOG = 117;

  AX_ROLE_MAIN = 118;

  AX_ROLE_MARK = 119;

  AX_ROLE_MARQUEE = 120;

  AX_ROLE_MATH = 121;

  AX_ROLE_MENU = 122;

  AX_ROLE_MENUBAR = 123;

  AX_ROLE_MENUITEM = 124;

  AX_ROLE_MENUITEMCHECKBOX = 125;

  AX_ROLE_MENUITEMRADIO = 126;

  AX_ROLE_MENULISTOPTION = 127;

  AX_ROLE_MENULISTPOPUP = 128;

  AX_ROLE_METER = 129;

  AX_ROLE_NAVIGATION = 130;

  AX_ROLE_NOTE = 131;

  AX_ROLE_PANE = 132;

  AX_ROLE_PARAGRAPH = 133;

  AX_ROLE_PDFACTIONABLEHIGHLIGHT = 134;

  AX_ROLE_PDFROOT = 135;

  AX_ROLE_PLUGINOBJECT = 136;

  AX_ROLE_POPUPBUTTON = 137;

  AX_ROLE_PORTALDEPRECATED = 138;

  AX_ROLE_PREDEPRECATED = 139;

  AX_ROLE_PROGRESSINDICATOR = 140;

  AX_ROLE_RADIOBUTTON = 141;

  AX_ROLE_RADIOGROUP = 142;

  AX_ROLE_REGION = 143;

  AX_ROLE_ROOTWEBAREA = 144;

  AX_ROLE_ROW = 145;

  AX_ROLE_ROWGROUP = 146;

  AX_ROLE_ROWHEADER = 147;

  AX_ROLE_RUBY = 148;

  AX_ROLE_RUBYANNOTATION = 149;

  AX_ROLE_SCROLLBAR = 150;

  AX_ROLE_SCROLLVIEW = 151;

  AX_ROLE_SEARCH = 152;

  AX_ROLE_SEARCHBOX = 153;

  AX_ROLE_SECTION = 154;

  AX_ROLE_SLIDER = 155;

  AX_ROLE_SPINBUTTON = 156;

  AX_ROLE_SPLITTER = 157;

  AX_ROLE_STATICTEXT = 158;

  AX_ROLE_STATUS = 159;

  AX_ROLE_STRONG = 160;

  AX_ROLE_SUGGESTION = 161;

  AX_ROLE_SVGROOT = 162;

  AX_ROLE_SWITCH = 163;

  AX_ROLE_TAB = 164;

  AX_ROLE_TABLIST = 165;

  AX_ROLE_TABPANEL = 166;

  AX_ROLE_TABLE = 167;

  AX_ROLE_TABLEHEADERCONTAINER = 168;

  AX_ROLE_TERM = 169;

  AX_ROLE_TEXTFIELD = 170;

  AX_ROLE_TEXTFIELDWITHCOMBOBOX = 171;

  AX_ROLE_TIME = 172;

  AX_ROLE_TIMER = 173;

  AX_ROLE_TITLEBAR = 174;

  AX_ROLE_TOGGLEBUTTON = 175;

  AX_ROLE_TOOLBAR = 176;

  AX_ROLE_TOOLTIP = 177;

  AX_ROLE_TREE = 178;

  AX_ROLE_TREEGRID = 179;

  AX_ROLE_TREEITEM = 180;

  AX_ROLE_UNKNOWN = 181;

  AX_ROLE_VIDEO = 182;

  AX_ROLE_WEBVIEW = 183;

  AX_ROLE_WINDOW = 184;

  AX_ROLE_SUBSCRIPT = 185;

  AX_ROLE_SUPERSCRIPT = 186;

  AX_ROLE_MATHMLMATH = 187;

  AX_ROLE_MATHMLFRACTION = 188;

  AX_ROLE_MATHMLIDENTIFIER = 189;

  AX_ROLE_MATHMLMULTISCRIPTS = 190;

  AX_ROLE_MATHMLNONESCRIPT = 191;

  AX_ROLE_MATHMLNUMBER = 192;

  AX_ROLE_MATHMLOPERATOR = 193;

  AX_ROLE_MATHMLOVER = 194;

  AX_ROLE_MATHMLPRESCRIPTDELIMITER = 195;

  AX_ROLE_MATHMLROOT = 196;

  AX_ROLE_MATHMLROW = 197;

  AX_ROLE_MATHMLSQUAREROOT = 198;

  AX_ROLE_MATHMLSTRINGLITERAL = 199;

  AX_ROLE_MATHMLSUB = 200;

  AX_ROLE_MATHMLSUBSUP = 201;

  AX_ROLE_MATHMLSUP = 202;

  AX_ROLE_MATHMLTABLE = 203;

  AX_ROLE_MATHMLTABLECELL = 204;

  AX_ROLE_MATHMLTABLEROW = 205;

  AX_ROLE_MATHMLTEXT = 206;

  AX_ROLE_MATHMLUNDER = 207;

  AX_ROLE_MATHMLUNDEROVER = 208;

  AX_ROLE_COMBOBOXSELECT = 209;

  AX_ROLE_DISCLOSURETRIANGLEGROUPED = 210;

  AX_ROLE_SECTIONWITHOUTNAME = 211;

  AX_ROLE_GRIDCELL = 212;
}

// AX String attribute enum.
// Next ID: 43
enum AXStringAttribute {
  AX_SA_NONE = 0;

  AX_SA_ACCESSKEY = 1;

  AX_SA_APPID = 2;

  AX_SA_ARIAINVALIDVALUEDEPRECATED = 3;

  AX_SA_AUTOCOMPLETE = 4;

  AX_SA_CHECKEDSTATEDESCRIPTION = 5;

  AX_SA_CHILDTREEID = 6;

  AX_SA_CHILDTREENODEAPPID = 7;

  AX_SA_CLASSNAME = 8;

  AX_SA_CONTAINERLIVERELEVANT = 9;

  AX_SA_CONTAINERLIVESTATUS = 10;

  AX_SA_DESCRIPTION = 11;

  AX_SA_DISPLAY = 12;

  AX_SA_FONTFAMILY = 13;

  AX_SA_HTMLTAG = 14;

  AX_SA_IMAGEANNOTATION = 15;

  AX_SA_IMAGEDATAURL = 16;

  AX_SA_MATHCONTENT = 17;

  AX_SA_INPUTTYPE = 18;

  AX_SA_KEYSHORTCUTS = 19;

  AX_SA_LANGUAGE = 20;

  AX_SA_NAME = 21;

  AX_SA_LIVERELEVANT = 22;

  AX_SA_LIVESTATUS = 23;

  AX_SA_PLACEHOLDER = 24;

  AX_SA_ROLE = 25;

  AX_SA_ROLEDESCRIPTION = 26;

  AX_SA_TOOLTIP = 27;

  AX_SA_URL = 28;

  AX_SA_VALUE = 29;

  AX_SA_VIRTUALCONTENT = 30;

  AX_SA_DODEFAULTLABEL = 31;

  AX_SA_LONGCLICKLABEL = 32;

  AX_SA_ARIABRAILLELABEL = 33;

  AX_SA_ARIABRAILLEROLEDESCRIPTION = 34;

  AX_SA_LINKTARGET = 35;

  AX_SA_ARIANOTIFICATIONANNOUNCEMENTDEPRECATED = 36;

  AX_SA_ARIANOTIFICATIONIDDEPRECATED = 37;

  AX_SA_HTMLID = 38;

  AX_SA_ARIACELLCOLUMNINDEXTEXT = 39;

  AX_SA_ARIACELLROWINDEXTEXT = 40;

  AX_SA_DATETIME = 41;

  AX_SA_HTMLINPUTNAME = 42;
}

// AX Int attribute enum.
// Next ID: 68
enum AXIntAttribute {
  AX_IA_NONE = 0;

  AX_IA_DEFAULTACTIONVERB = 1;

  AX_IA_SCROLLX = 2;

  AX_IA_SCROLLXMIN = 3;

  AX_IA_SCROLLXMAX = 4;

  AX_IA_SCROLLY = 5;

  AX_IA_SCROLLYMIN = 6;

  AX_IA_SCROLLYMAX = 7;

  AX_IA_TEXTSELSTART = 8;

  AX_IA_TEXTSELEND = 9;

  AX_IA_ARIACOLUMNCOUNT = 10;

  AX_IA_ARIACELLCOLUMNINDEX = 11;

  AX_IA_ARIACELLCOLUMNSPAN = 12;

  AX_IA_ARIAROWCOUNT = 13;

  AX_IA_ARIACELLROWINDEX = 14;

  AX_IA_ARIACELLROWSPAN = 15;

  AX_IA_TABLEROWCOUNT = 16;

  AX_IA_TABLECOLUMNCOUNT = 17;

  AX_IA_TABLEHEADERID = 18;

  AX_IA_TABLEROWINDEX = 19;

  AX_IA_TABLEROWHEADERID = 20;

  AX_IA_TABLECOLUMNINDEX = 21;

  AX_IA_TABLECOLUMNHEADERID = 22;

  AX_IA_TABLECELLCOLUMNINDEX = 23;

  AX_IA_TABLECELLCOLUMNSPAN = 24;

  AX_IA_TABLECELLROWINDEX = 25;

  AX_IA_TABLECELLROWSPAN = 26;

  AX_IA_SORTDIRECTION = 27;

  AX_IA_HIERARCHICALLEVEL = 28;

  AX_IA_NAMEFROM = 29;

  AX_IA_DESCRIPTIONFROM = 30;

  AX_IA_ACTIVEDESCENDANTID = 31;

  AX_IA_ERRORMESSAGEIDDEPRECATED = 32;

  AX_IA_INPAGELINKTARGETID = 33;

  AX_IA_MEMBEROFID = 34;

  AX_IA_NEXTONLINEID = 35;

  AX_IA_POPUPFORID = 36;

  AX_IA_PREVIOUSONLINEID = 37;

  AX_IA_RESTRICTION = 38;

  AX_IA_SETSIZE = 39;

  AX_IA_POSINSET = 40;

  AX_IA_COLORVALUE = 41;

  AX_IA_ARIACURRENTSTATE = 42;

  AX_IA_BACKGROUNDCOLOR = 43;

  AX_IA_COLOR = 44;

  AX_IA_HASPOPUP = 45;

  AX_IA_IMAGEANNOTATIONSTATUS = 46;

  AX_IA_INVALIDSTATE = 47;

  AX_IA_CHECKEDSTATE = 48;

  AX_IA_LISTSTYLE = 49;

  AX_IA_TEXTALIGN = 50;

  AX_IA_TEXTDIRECTION = 51;

  AX_IA_TEXTPOSITION = 52;

  AX_IA_TEXTSTYLE = 53;

  AX_IA_TEXTOVERLINESTYLE = 54;

  AX_IA_TEXTSTRIKETHROUGHSTYLE = 55;

  AX_IA_TEXTUNDERLINESTYLE = 56;

  AX_IA_PREVIOUSFOCUSID = 57;

  AX_IA_NEXTFOCUSID = 58;

  AX_IA_DROPEFFECTDEPRECATED = 59;

  AX_IA_DOMNODEIDDEPRECATED = 60;

  AX_IA_ISPOPUP = 61;

  AX_IA_NEXTWINDOWFOCUSID = 62;

  AX_IA_PREVIOUSWINDOWFOCUSID = 63;

  AX_IA_ARIANOTIFICATIONINTERRUPTDEPRECATED = 64;

  AX_IA_ARIANOTIFICATIONPRIORITYDEPRECATED = 65;

  AX_IA_DETAILSFROM = 66;

  AX_IA_MAXLENGTH = 67;
}

// AX Float attribute enum.
// Next ID: 9
enum AXFloatAttribute {
  AX_FA_NONE = 0;

  AX_FA_VALUEFORRANGE = 1;

  AX_FA_MINVALUEFORRANGE = 2;

  AX_FA_MAXVALUEFORRANGE = 3;

  AX_FA_STEPVALUEFORRANGE = 4;

  AX_FA_FONTSIZE = 5;

  AX_FA_FONTWEIGHT = 6;

  AX_FA_TEXTINDENT = 7;

  AX_FA_CHILDTREESCALE = 8;
}

// AX Bool attribute enum.
// Next ID: 23
enum AXBoolAttribute {
  AX_BA_NONE = 0;

  AX_BA_BUSY = 1;

  AX_BA_NONATOMICTEXTFIELDROOT = 2;

  AX_BA_CONTAINERLIVEATOMIC = 3;

  AX_BA_CONTAINERLIVEBUSY = 4;

  AX_BA_LIVEATOMIC = 5;

  AX_BA_MODAL = 6;

  AX_BA_UPDATELOCATIONONLY = 7;

  AX_BA_CANVASHASFALLBACK = 8;

  AX_BA_SCROLLABLE = 9;

  AX_BA_CLICKABLE = 10;

  AX_BA_CLIPSCHILDREN = 11;

  AX_BA_NOTUSERSELECTABLESTYLE = 12;

  AX_BA_SELECTED = 13;

  AX_BA_SELECTEDFROMFOCUS = 14;

  AX_BA_SUPPORTSTEXTLOCATION = 15;

  AX_BA_GRABBEDDEPRECATED = 16;

  AX_BA_ISLINEBREAKINGOBJECT = 17;

  AX_BA_ISPAGEBREAKINGOBJECT = 18;

  AX_BA_HASARIAATTRIBUTE = 19;

  AX_BA_TOUCHPASSTHROUGHDEPRECATED = 20;

  AX_BA_LONGCLICKABLE = 21;

  AX_BA_HASHIDDENOFFSCREENNODES = 22;
}

// AX IntList attribute enum.
// Next ID: 30
enum AXIntListAttribute {
  AX_ILA_NONE = 0;

  AX_ILA_INDIRECTCHILDIDS = 1;

  AX_ILA_ACTIONSIDS = 29;

  AX_ILA_CONTROLSIDS = 2;

  AX_ILA_DETAILSIDS = 3;

  AX_ILA_DESCRIBEDBYIDS = 4;

  AX_ILA_FLOWTOIDS = 5;

  AX_ILA_LABELLEDBYIDS = 6;

  AX_ILA_RADIOGROUPIDS = 7;

  AX_ILA_MARKERTYPES = 8;

  AX_ILA_MARKERSTARTS = 9;

  AX_ILA_MARKERENDS = 10;

  AX_ILA_CHARACTEROFFSETS = 11;

  AX_ILA_LINESTARTS = 12;

  AX_ILA_WORDSTARTS = 13;

  AX_ILA_WORDENDS = 14;

  AX_ILA_CUSTOMACTIONIDS = 15;

  AX_ILA_CARETBOUNDS = 16;

  AX_ILA_LINEENDS = 17;

  AX_ILA_SENTENCESTARTS = 18;

  AX_ILA_SENTENCEENDS = 19;

  AX_ILA_HIGHLIGHTTYPES = 20;

  AX_ILA_TEXTOPERATIONSTARTANCHORIDS = 21;

  AX_ILA_TEXTOPERATIONSTARTOFFSETS = 22;

  AX_ILA_TEXTOPERATIONENDANCHORIDS = 23;

  AX_ILA_TEXTOPERATIONENDOFFSETS = 24;

  AX_ILA_TEXTOPERATIONS = 25;

  AX_ILA_ERRORMESSAGEIDS = 26;

  AX_ILA_ARIANOTIFICATIONINTERRUPTPROPERTIES = 27;

  AX_ILA_ARIANOTIFICATIONPRIORITYPROPERTIES = 28;
}

// AX StringList attribute enum.
// Next ID: 4
enum AXStringListAttribute {
  AX_SLA_NONE = 0;

  AX_SLA_CUSTOMACTIONDESCRIPTIONS = 1;

  AX_SLA_ARIANOTIFICATIONANNOUNCEMENTS = 2;

  AX_SLA_ARIANOTIFICATIONTYPES = 3;
}

// This will be updated when there is a significant change in the parsing logic.
// Next ID: 3
enum AnnotatedPageContentVersion {
  ANNOTATED_PAGE_CONTENT_VERSION_UNKNOWN = 0;

  ANNOTATED_PAGE_CONTENT_VERSION_1_0 = 1;

  // DEPRECATED: Use AnnotatedPageContentMode mode instead.
  // TODO(khushalsagar): Maintain both on the client until all users have been
  // switched over.
  ANNOTATED_PAGE_CONTENT_VERSION_ONLY_ACTIONABLE_ELEMENTS_1_0 = 2 [deprecated = true];
}

// The extraction on the client can be configured to a specific mode. This
// tracks the mode used to extract this proto.
enum AnnotatedPageContentMode {
  ANNOTATED_PAGE_CONTENT_MODE_DEFAULT = 0;

  // This mode is strictly a superset of the default mode. It includes
  // additional information to understand which content a user can interact
  // with.
  //
  // Note: This mode is under active development and backwards incompatible
  // changes are expected.
  ANNOTATED_PAGE_CONTENT_MODE_ACTIONABLE_ELEMENTS = 1;
}

// Indicates the structure of the ContentNode. Suggests which type of
// content_data will be found in the ContentNode.
// When adding new types, please also update AIPageContentAttributeType in
// third_party/blink/public/mojom/content_extraction/ai_page_content.mojom.
// See crrev.com/c/6072788 for an example.
// Next ID: 28
enum ContentAttributeType {
  // Unknown is not a valid attribute type and should never be used by the
  // client. You can consider discarding ContentNodes with this attribute type.
  CONTENT_ATTRIBUTE_UNKNOWN = 0;

  CONTENT_ATTRIBUTE_ROOT = 1;

  CONTENT_ATTRIBUTE_CONTAINER = 2;

  CONTENT_ATTRIBUTE_IFRAME = 3;

  // Text chunks.
  CONTENT_ATTRIBUTE_PARAGRAPH = 4;

  CONTENT_ATTRIBUTE_HEADING = 5;

  CONTENT_ATTRIBUTE_TEXT = 20;

  CONTENT_ATTRIBUTE_ANCHOR = 22;

  // Image chunks.
  CONTENT_ATTRIBUTE_IMAGE = 9;

  CONTENT_ATTRIBUTE_SVG = 25;

  CONTENT_ATTRIBUTE_CANVAS = 26;

  CONTENT_ATTRIBUTE_VIDEO = 27;

  // Structured chunks.
  CONTENT_ATTRIBUTE_ORDERED_LIST = 6;

  CONTENT_ATTRIBUTE_UNORDERED_LIST = 7;

  CONTENT_ATTRIBUTE_LIST_ITEM = 23;

  CONTENT_ATTRIBUTE_FORM = 8;

  CONTENT_ATTRIBUTE_FORM_CONTROL = 24;

  CONTENT_ATTRIBUTE_TABLE = 10;

  CONTENT_ATTRIBUTE_TABLE_ROW = 21;

  CONTENT_ATTRIBUTE_TABLE_CELL = 11;

  reserved 12, 13, 14, 15, 16, 17, 18, 19;
}

// The reason why a node is clickable.
// Next ID: 7
enum ClickabilityReason {
  // The node is a native form control.
  CLICKABILITY_REASON_CLICKABLE_CONTROL = 0;

  // The node has a click event handler.
  CLICKABILITY_REASON_CLICK_HANDLER = 1;

  // The node has mouse event handlers like mouseup, mousedown, mouseover and
  // mouseenter.
  CLICKABILITY_REASON_MOUSE_EVENTS = 2;

  // The node has keyboard event handlers like keydown, keypress, keyup.
  CLICKABILITY_REASON_KEY_EVENTS = 3;

  // The node's text can be edited.
  CLICKABILITY_REASON_EDITABLE = 4;

  // The node uses cursor css to indicate the element is interactive.
  CLICKABILITY_REASON_CURSOR_POINTER = 5;

  // The node has a clickable aria role.
  CLICKABILITY_REASON_ARIA_ROLE = 6;
}

// Next ID: 5
enum TextSize {
  TEXT_SIZE_M_DEFAULT = 0;

  TEXT_SIZE_XS = 1;

  TEXT_SIZE_S = 2;

  TEXT_SIZE_L = 3;

  TEXT_SIZE_XL = 4;
}

// The relationship between the linked URL and the current document.
// https://html.spec.whatwg.org/multipage/links.html#linkTypes
enum AnchorRel {
  ANCHOR_REL_UNKNOWN = 0;

  ANCHOR_REL_NO_REFERRER = 1;

  ANCHOR_REL_NO_OPENER = 2;

  ANCHOR_REL_OPENER = 3;

  ANCHOR_REL_PRIVACY_POLICY = 4;

  ANCHOR_REL_TERMS_OF_SERVICE = 5;
}

// Matches FormControlType in mojo, but off by one, because this list contains
// an "UNSPECIFIED" value at 0.
// https://source.chromium.org/chromium/chromium/src/+/main:components/autofill/core/common/mojom/autofill_types.mojom;l=17;drc=105770df485ace262780d95126bb60b1a16ec340;bpv=1;bpt=1
// Next ID: 34
enum FormControlType {
  FORM_CONTROL_TYPE_UNSPECIFIED = 0;

  FORM_CONTROL_TYPE_CONTENT_EDITABLE = 1;

  FORM_CONTROL_TYPE_INPUT_CHECKBOX = 2;

  FORM_CONTROL_TYPE_INPUT_EMAIL = 3;

  FORM_CONTROL_TYPE_INPUT_MONTH = 4;

  FORM_CONTROL_TYPE_INPUT_NUMBER = 5;

  FORM_CONTROL_TYPE_INPUT_PASSWORD = 6;

  FORM_CONTROL_TYPE_INPUT_RADIO = 7;

  FORM_CONTROL_TYPE_INPUT_SEARCH = 8;

  FORM_CONTROL_TYPE_INPUT_TELEPHONE = 9;

  FORM_CONTROL_TYPE_INPUT_TEXT = 10;

  FORM_CONTROL_TYPE_INPUT_URL = 11;

  FORM_CONTROL_TYPE_SELECT_ONE = 12;

  FORM_CONTROL_TYPE_SELECT_MULTIPLE = 13;

  FORM_CONTROL_TYPE_TEXT_AREA = 15;

  FORM_CONTROL_TYPE_BUTTON_BUTTON = 16;

  FORM_CONTROL_TYPE_BUTTON_SUBMIT = 17;

  FORM_CONTROL_TYPE_BUTTON_RESET = 18;

  FORM_CONTROL_TYPE_BUTTON_POPOVER = 19;

  FORM_CONTROL_TYPE_FIELDSET = 20;

  FORM_CONTROL_TYPE_INPUT_BUTTON = 21;

  FORM_CONTROL_TYPE_INPUT_COLOR = 22;

  FORM_CONTROL_TYPE_INPUT_DATE = 23;

  FORM_CONTROL_TYPE_INPUT_DATETIME_LOCAL = 24;

  FORM_CONTROL_TYPE_INPUT_FILE = 25;

  FORM_CONTROL_TYPE_INPUT_HIDDEN = 26;

  FORM_CONTROL_TYPE_INPUT_IMAGE = 27;

  FORM_CONTROL_TYPE_INPUT_RANGE = 28;

  FORM_CONTROL_TYPE_INPUT_RESET = 29;

  FORM_CONTROL_TYPE_INPUT_SUBMIT = 30;

  FORM_CONTROL_TYPE_INPUT_TIME = 31;

  FORM_CONTROL_TYPE_INPUT_WEEK = 32;

  FORM_CONTROL_TYPE_OUTPUT = 33;
}

enum TableRowType {
  TABLE_ROW_TYPE_UNKNOWN = 0;

  TABLE_ROW_TYPE_HEADER = 1;

  TABLE_ROW_TYPE_BODY = 2;

  TABLE_ROW_TYPE_FOOTER = 3;
}

// Indicates the semantic role of the content. These can come from the aria
// role, the html tag, or are assumed from some properties of the page.
// When adding new roles, please also update AIPageContentAnnotatedRole in
// third_party/blink/public/mojom/content_extraction/ai_page_content.mojom.
// Next ID: 15
enum AnnotatedRole {
  ANNOTATED_ROLE_UNKNOWN = 0;

  // Landmark/section chunks.
  ANNOTATED_ROLE_HEADER = 5;

  ANNOTATED_ROLE_NAV = 6;

  ANNOTATED_ROLE_SEARCH = 7;

  ANNOTATED_ROLE_MAIN = 8;

  ANNOTATED_ROLE_ARTICLE = 9;

  ANNOTATED_ROLE_SECTION = 10;

  ANNOTATED_ROLE_ASIDE = 11;

  ANNOTATED_ROLE_FOOTER = 12;

  // Indicates that the subtree for this ContentNode is hidden from the user but
  // accessible via features like find-in-page. See `hidden=until-found` in
  // https://developer.mozilla.org/en-US/docs/Wecrbug.com/HTML/Global_attributes/hidden
  // for details.
  //
  // Note: This is different from Geometry.visible_bounding_box being empty
  // which indicates whether the content is offscreen. The visible_bounding_box
  // for nodes in a hidden subtree may be non-empty, depending on whether the
  // content would be in the viewport if the user searched for it.
  ANNOTATED_ROLE_CONTENT_HIDDEN = 13;

  // Indicates that the subtree for this ContentNode contains content marked as
  // isAccessibleForFree=false by a schema.org CreativeWork declaration, as
  // described at
  // https://developers.google.com/search/docs/appearance/structured-data/paywalled-content.
  ANNOTATED_ROLE_PAID_CONTENT = 14;

  reserved 1 to 4;
}

// Whether or not status of the model's output is a success (i.e "is good") or
// is a failure (i.e "is bad").
// Next ID: 3
enum FinalModelStatus {
  FINAL_MODEL_STATUS_UNSPECIFIED = 0;

  FINAL_MODEL_STATUS_SUCCESS = 1;

  FINAL_MODEL_STATUS_FAILURE = 2;
}

// Next ID: 3
enum UserFeedback {
  USER_FEEDBACK_UNSPECIFIED = 0;

  USER_FEEDBACK_THUMBS_DOWN = 1;

  USER_FEEDBACK_THUMBS_UP = 2;
}