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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
module visitedlink.mojom;
import "mojo/public/mojom/base/shared_memory.mojom";
import "url/mojom/origin.mojom";
interface VisitedLinkNotificationSink {
// Notification that the visited link database has been replaced. It has one
// SharedMemoryHandle argument consisting of the table handle.
UpdateVisitedLinks(mojo_base.mojom.ReadOnlySharedMemoryRegion table_region);
// Notification that one or more links have been added and the link coloring
// state for the given hashes must be re-calculated.
AddVisitedLinks(array<uint64> link_hashes);
// Notification that one or more history items have been deleted, which at
// this point means that all link coloring state must be re-calculated.
// |invalidate_cached_hashes| is used to inform renderer process to invalidate
// cached visited links hashes. The flag is needed because the salt will
// change after loading the visitedlink table from the database file.
ResetVisitedLinks(bool invalidate_cached_hashes);
// When the partitioned :visited link hashtable is not building,
// VisitedLinkReader receives per-origin salts via the NavigationRequest
// commit parameters. To avoid race conditions, we do not send salts via
// NavigationRequest when the table is building on another thread. However,
// per-origin salts are required to hash the triple-partition key
// representing a link and determine its visited-ness. To ensure each link
// can access its corresponding salt, this notification updates the
// VisitedLinkReader with the salts of navigations that took place while the
// hashtable was building on the DB thread.
UpdateOriginSalts(map<url.mojom.Origin, uint64> origin_salts);
};
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