Extract content dependency from keyboard code

ash/shell_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 ASH_SHELL_DELEGATE_H_
 #define ASH_SHELL_DELEGATE_H_
 
 #include <string>
 
 #include "ash/ash_export.h"
@@ skipping 20 matching lines @@
 
 namespace ui {
 class MenuModel;
 }
 
 namespace views {
 class Widget;
 }
 
 namespace keyboard {
-class KeyboardControllerProxy;
+class KeyboardUI;
 }
 
 namespace ash {
 
 class AccessibilityDelegate;
 class MediaDelegate;
 class NewWindowDelegate;
 class SessionStateDelegate;
 class ShelfDelegate;
 class ShelfItemDelegate;
@@ skipping 48 matching lines @@
   // can perform tasks necessary before the shell is initialized.
   virtual void PreInit() = 0;
 
   // Called at the beginninig of Shell destructor so that
   // delegate can use Shell instance to perform cleanup tasks.
   virtual void PreShutdown() = 0;
 
   // Invoked when the user uses Ctrl-Shift-Q to close chrome.
   virtual void Exit() = 0;
 
-  // Create a shell-specific keyboard::KeyboardControllerProxy
-  virtual keyboard::KeyboardControllerProxy*
-      CreateKeyboardControllerProxy() = 0;
+  // Create a shell-specific keyboard::KeyboardUI
+  virtual keyboard::KeyboardUI* CreateKeyboardUI() = 0;
 
   // Called when virtual keyboard has been activated/deactivated.
   virtual void VirtualKeyboardActivated(bool activated) = 0;
 
   // Adds or removes virtual keyboard state observer.
   virtual void AddVirtualKeyboardStateObserver(
       VirtualKeyboardStateObserver* observer) = 0;
   virtual void RemoveVirtualKeyboardStateObserver(
       VirtualKeyboardStateObserver* observer) = 0;
 
@@ skipping 38 matching lines @@
   virtual base::string16 GetProductName() const = 0;
 
   virtual void OpenKeyboardShortcutHelpPage() const {}
 
   virtual gfx::Image GetDeprecatedAcceleratorImage() const = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SHELL_DELEGATE_H_