ash: Remove ash::Shelf in favor of ash::WmShelf

chrome/browser/ui/ash/launcher/chrome_launcher_controller_mus.h

 // Copyright 2016 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_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_MUS_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_MUS_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 62 matching lines @@
   bool ContentCanBeHandledByGmailApp(
       content::WebContents* web_contents) override;
   gfx::Image GetAppListIcon(content::WebContents* web_contents) const override;
   base::string16 GetAppListTitle(
       content::WebContents* web_contents) const override;
   BrowserShortcutLauncherItemController*
   GetBrowserShortcutLauncherItemController() override;
   LauncherItemController* GetLauncherItemController(
       const ash::ShelfID id) override;
   bool ShelfBoundsChangesProbablyWithUser(
-      ash::Shelf* shelf,
+      ash::WmShelf* shelf,
       const AccountId& account_id) const override;
   void OnUserProfileReadyToSwitch(Profile* profile) override;
   ArcAppDeferredLauncherController* GetArcDeferredLauncher() override;
 
  private:
   ChromeLauncherControllerMus();
 
   std::unique_ptr<ChromeMashShelfController> shelf_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeLauncherControllerMus);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_MUS_H_