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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_OMNIBOX_BROWSER_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
#define COMPONENTS_OMNIBOX_BROWSER_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
#include <string>
#include "third_party/metrics_proto/omnibox_input_type.pb.h"
// An interface that gives embedders the ability to automatically classify the
// omnibox input type based on an explicitly-specified schemes. If users type
// an input with an explicit scheme other than http, https, or file, this class
// will be used to try and determine whether the input should be treated as a
// URL (for known schemes we want to handle) or a query (for known schemes that
// should be blocked), or if the scheme alone isn't sufficient to make a
// determination.
class AutocompleteSchemeClassifier {
public:
virtual ~AutocompleteSchemeClassifier() = default;
// Checks |scheme| and returns the type of the input if the scheme is known
// and not blocked. Returns metrics::OmniboxInputType::EMPTY if it's unknown
// or the classifier implementation cannot handle.
virtual metrics::OmniboxInputType GetInputTypeForScheme(
const std::string& scheme) const = 0;
};
#endif // COMPONENTS_OMNIBOX_BROWSER_AUTOCOMPLETE_SCHEME_CLASSIFIER_H_
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