Deleted AppListViewDelegateObserver class (was unused).

chrome/browser/ui/app_list/app_list_view_delegate.h

 // Copyright (c) 2012 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_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 #define CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
-#include "base/observer_list.h"
 #include "base/scoped_observer.h"
 #include "chrome/browser/profiles/profile_attributes_storage.h"
 #include "chrome/browser/search/hotword_client.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/app_list/start_page_observer.h"
 #include "components/search_engines/template_url_service.h"
 #include "components/search_engines/template_url_service_observer.h"
 #include "components/signin/core/browser/signin_manager_base.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ skipping 76 matching lines @@
   void ShowForProfileByPath(const base::FilePath& profile_path) override;
 #if defined(TOOLKIT_VIEWS)
   views::View* CreateStartPageWebView(const gfx::Size& size) override;
   std::vector<views::View*> CreateCustomPageWebViews(
       const gfx::Size& size) override;
   void CustomLauncherPageAnimationChanged(double progress) override;
   void CustomLauncherPagePopSubpage() override;
 #endif
   bool IsSpeechRecognitionEnabled() override;
   const Users& GetUsers() const override;
-  void AddObserver(app_list::AppListViewDelegateObserver* observer) override;
-  void RemoveObserver(app_list::AppListViewDelegateObserver* observer) override;
 
   // Overridden from TemplateURLServiceObserver:
   void OnTemplateURLServiceChanged() override;
 
  private:
   // Updates the speech webview and start page for the current |profile_|.
   void SetUpSearchUI();
 
   // Updates the app list's ProfileMenuItems for the current |profile_|.
   void SetUpProfileSwitcher();
@@ skipping 58 matching lines @@
   base::TimeDelta auto_launch_timeout_;
   // Determines whether the current search was initiated by speech.
   bool is_voice_query_;
 
   Users users_;
 
 #if defined(USE_ASH)
   std::unique_ptr<AppSyncUIStateWatcher> app_sync_ui_state_watcher_;
 #endif
 
-  base::ObserverList<app_list::AppListViewDelegateObserver> observers_;
-
   ScopedObserver<TemplateURLService, AppListViewDelegate>
       template_url_service_observer_;
 
   // Used to track the SigninManagers that this instance is observing so that
   // this instance can be removed as an observer on its destruction.
   ScopedObserver<SigninManagerBase, AppListViewDelegate> scoped_observer_;
 
   // Window contents of additional custom launcher pages.
   ScopedVector<apps::CustomLauncherPageContents> custom_page_contents_;
 
   // Registers for NOTIFICATION_APP_TERMINATING to unload custom launcher pages.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AppListViewDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_APP_LIST_VIEW_DELEGATE_H_