Allow virtual keyboard window to access audio stream and speech api for voice input

chrome/browser/ui/ash/ash_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 CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
 #define CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
@@ skipping 22 matching lines @@
  public:
   AshKeyboardControllerProxy();
   virtual ~AshKeyboardControllerProxy();
 
  private:
   void OnRequest(const ExtensionHostMsg_Request_Params& params);
 
   // keyboard::KeyboardControllerProxy overrides
   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;
   virtual void SetupWebContents(content::WebContents* contents) OVERRIDE;
   virtual void ShowKeyboardContainer(aura::Window* container) OVERRIDE;
 
   // ExtensionFunctionDispatcher::Delegate overrides
   virtual extensions::WindowController* GetExtensionWindowController() const
       OVERRIDE;
   virtual content::WebContents* GetAssociatedWebContents() const OVERRIDE;
 
   // content::WebContentsObserver overrides
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   scoped_ptr<ExtensionFunctionDispatcher> extension_function_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(AshKeyboardControllerProxy);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_ASH_KEYBOARD_CONTROLLER_PROXY_H_