[Code cleanup]Remove webui virtual keyboard code

ui/keyboard/keyboard_controller_proxy.h

 // Copyright (c) 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 UI_KEYBOARD_KEYBOARD_CONTROLLER_PROXY_H_
 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_PROXY_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "content/public/common/media_stream_request.h"
 #include "ui/base/ime/text_input_type.h"
@@ skipping 52 matching lines @@
   // Shows the container window of the keyboard. The default implementation
   // simply shows the container. An overridden implementation can set up
   // necessary animation, or delay the visibility change as it desires.
   virtual void ShowKeyboardContainer(aura::Window* container);
 
   // Hides the container window of the keyboard. The default implementation
   // simply hides the container. An overridden implementation can set up
   // necesasry animation, or delay the visibility change as it desires.
   virtual void HideKeyboardContainer(aura::Window* container);
 
-  // Updates the type of the focused text input box. The default implementation
-  // calls OnTextInputBoxFocused javascript function through webui to update the
-  // type the of focused input box.
+  // Updates the type of the focused text input box.
   virtual void SetUpdateInputType(ui::TextInputType type);
 
   // Ensures caret in current work area (not occluded by virtual keyboard
   // window).
   virtual void EnsureCaretInWorkArea();
 
   // Loads system virtual keyboard. Noop if the current virtual keyboard is
   // system virtual keyboard.
   virtual void LoadSystemKeyboard();
 
@@ skipping 32 matching lines @@
 
   // Whether the current keyboard window is resizing from its web content.
   bool resizing_from_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardControllerProxy);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_PROXY_H_