root/chrome/browser/search/instant_service_observer.h

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INCLUDED FROM

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_SEARCH_INSTANT_SERVICE_OBSERVER_H_
#define CHROME_BROWSER_SEARCH_INSTANT_SERVICE_OBSERVER_H_

#include <vector>

struct InstantMostVisitedItem;
struct ThemeBackgroundInfo;

// InstantServiceObserver defines the observer interface for InstantService.
class InstantServiceObserver {
 public:
  // Indicates that the user's custom theme has changed in some way.
  virtual void ThemeInfoChanged(const ThemeBackgroundInfo&);

  // Indicates that the most visited items has changed.
  virtual void MostVisitedItemsChanged(
      const std::vector<InstantMostVisitedItem>&);

  // Indicates that the default search provider changed.
  virtual void DefaultSearchProviderChanged();

  // Indicates that the Google URL has changed as a result of searchdomaincheck.
  // Note that the search domain change triggers a yellow infobar at the top of
  // the page, and the actual change is triggered after the user accepts.
  virtual void GoogleURLUpdated();

  // Indicates that the omnibox start margin has changed.
  virtual void OmniboxStartMarginChanged(int omnibox_start_margin);

 protected:
  virtual ~InstantServiceObserver() {}
};

#endif  // CHROME_BROWSER_SEARCH_INSTANT_SERVICE_OBSERVER_H_
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