Switch from text insertion to key press and release events on the virtual k…

ui/keyboard/keyboard_ui_handler.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_UI_HANDLER_H_
 #define UI_KEYBOARD_KEYBOARD_UI_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace keyboard {
 
 // The WebUI handler for chrome://keyboard.  Inserts text into the currently
 // focused TextInputClient.
 class KeyboardUIHandler : public content::WebUIMessageHandler {
  public:
   KeyboardUIHandler();
   virtual ~KeyboardUIHandler();
 
  private:
   // |content::WebUIMessageHandler| implementation:
   virtual void RegisterMessages() OVERRIDE;
 
   // Callback for the "insertText" message.
   void HandleInsertTextMessage(const base::ListValue* args);
 
+  // Callback for the "dispatchKeyEvent" message.
+  void HandleDispatchKeyEventMessage(const base::ListValue* args);
+
   DISALLOW_COPY_AND_ASSIGN(KeyboardUIHandler);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_KEYBOARD_UI_HANDLER_H_