Hide experimental app list Google logo and custom launcher page when search engine is not Google.

ui/app_list/views/app_list_main_view.h

 // 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 UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_
 #define UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_
 
 #include <string>
 
 #include "base/memory/scoped_vector.h"
@@ skipping 63 matching lines @@
 
   // Returns true if the app list should be centered and in landscape mode.
   bool ShouldCenterWindow() const;
 
   // Called when the search box's visibility is changed.
   void NotifySearchBoxVisibilityChanged();
 
   // Initialize widgets that live inside the app list's main widget.
   void InitWidgets();
 
+  bool ShouldShowCustomLauncherPage() const;
+  void UpdateCustomLauncherPageVisibility();
+
   // Overridden from AppListModelObserver:
   void OnCustomLauncherPageEnabledStateChanged(bool enabled) override;
+  void OnSearchEngineIsGoogleChanged(bool is_google) override;
 
  private:
   class IconLoader;
 
   // Adds the ContentsView.
   void AddContentsViews();
 
   // Gets the PaginationModel owned by the AppsGridView.
   PaginationModel* GetAppsPaginationModel();
 
@@ skipping 40 matching lines @@
   ScopedVector<IconLoader> pending_icon_loaders_;
 
   base::WeakPtrFactory<AppListMainView> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListMainView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_APP_LIST_MAIN_VIEW_H_