Add a full screen virtual keyboard to virtual keyboard root window

ash/keyboard_controller_proxy_stub.h

Index: ash/keyboard_controller_proxy_stub.h
diff --git a/ash/keyboard_controller_proxy_stub.h b/ash/keyboard_controller_proxy_stub.h
deleted file mode 100644
index 25310d716012678fc6c4b05fef83e1b973ec0969..0000000000000000000000000000000000000000
--- a/ash/keyboard_controller_proxy_stub.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2013 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_KEYBOARD_CONTROLLER_PROXY_STUB_H_
-#define ASH_KEYBOARD_CONTROLLER_PROXY_STUB_H_
-
-#include "ash/ash_export.h"
-#include "ui/keyboard/keyboard_controller_proxy.h"
-
-namespace ash {
-
-// Stub implementation of KeyboardControllerProxy
-class ASH_EXPORT KeyboardControllerProxyStub
-    : public keyboard::KeyboardControllerProxy {
- public:
-  KeyboardControllerProxyStub();
-  virtual ~KeyboardControllerProxyStub();
-
- private:
-  // Overridden from keyboard::KeyboardControllerProxy:
-  virtual content::BrowserContext* GetBrowserContext() OVERRIDE;
-  virtual ui::InputMethod* GetInputMethod() OVERRIDE;
-  virtual void RequestAudioInput(content::WebContents* web_contents,
-      const content::MediaStreamRequest& request,
-      const content::MediaResponseCallback& callback) OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(KeyboardControllerProxyStub);
-};
-
-}  // namespace ash
-
-#endif  // ASH_KEYBOARD_CONTROLLER_PROXY_STUB_H_