Moves Shell::CreateShelf() to WmShell

ash/common/wm_shell.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 ASH_COMMON_WM_SHELL_H_
 #define ASH_COMMON_WM_SHELL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 305 matching lines @@
       WmWindow* workspace_window) = 0;
 
   virtual std::unique_ptr<ScopedDisableInternalMouseAndKeyboard>
   CreateScopedDisableInternalMouseAndKeyboard() = 0;
 
   virtual std::unique_ptr<ImmersiveFullscreenController>
   CreateImmersiveFullscreenController() = 0;
 
   virtual std::unique_ptr<KeyEventWatcher> CreateKeyEventWatcher() = 0;
 
+  // Initializes the appropriate shelves. Does nothing for any existing shelves.
+  void CreateShelf();
+
   // Show shelf view if it was created hidden (before session has started).
   void ShowShelf();
 
   void CreateShelfDelegate();
 
   // Called after maximize mode has started, windows might still animate though.
   void OnMaximizeModeStarted();
 
   // Called after maximize mode has ended, windows might still be returning to
   // their original position.
@@ skipping 152 matching lines @@
   scoped_refptr<base::SequencedWorkerPool> blocking_pool_;
 
 #if defined(OS_CHROMEOS)
   std::unique_ptr<LogoutConfirmationController> logout_confirmation_controller_;
 #endif
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_WM_SHELL_H_