Revert of AppListController refactoring part 3: Switching over to use AppListShower in Ash.

chrome/browser/ui/ash/app_list/app_list_controller_ash.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_ASH_APP_LIST_APP_LIST_CONTROLLER_ASH_H_
 #define CHROME_BROWSER_UI_ASH_APP_LIST_APP_LIST_CONTROLLER_ASH_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_types.h"
 
-namespace app_list {
-class AppListShowerImpl;
-}
-
 class AppListControllerDelegateAsh : public AppListControllerDelegate {
  public:
-  explicit AppListControllerDelegateAsh(app_list::AppListShowerImpl*);
+  AppListControllerDelegateAsh();
   ~AppListControllerDelegateAsh() override;
 
  private:
   // AppListControllerDelegate overrides:
   void DismissView() override;
   gfx::NativeWindow GetAppListWindow() override;
   gfx::Rect GetAppListBounds() override;
   gfx::ImageSkia GetWindowIcon() override;
   bool IsAppPinned(const std::string& extension_id) override;
   void PinApp(const std::string& extension_id) override;
@@ skipping 15 matching lines @@
                    int event_flags) override;
   void LaunchApp(Profile* profile,
                  const extensions::Extension* extension,
                  AppListSource source,
                  int event_flags) override;
   void ShowForProfileByPath(const base::FilePath& profile_path) override;
   bool ShouldShowUserIcon() override;
 
   ash::LaunchSource AppListSourceToLaunchSource(AppListSource source);
 
-  // Not owned.
-  app_list::AppListShowerImpl* app_list_shower_;
-
   DISALLOW_COPY_AND_ASSIGN(AppListControllerDelegateAsh);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_APP_LIST_APP_LIST_CONTROLLER_ASH_H_