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

ash/shell/shell_delegate_impl.cc

 // 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.
 
 #include "ash/shell/shell_delegate_impl.h"
 
 #include <limits>
 
 #include "ash/caps_lock_delegate_stub.h"
 #include "ash/host/root_window_host_factory.h"
@@ skipping 22 matching lines @@
  private:
   // Overridden from keyboard::KeyboardControllerProxy:
   virtual content::BrowserContext* GetBrowserContext() OVERRIDE {
     return Shell::GetInstance()->browser_context();
   }
 
   virtual ui::InputMethod* GetInputMethod() OVERRIDE {
     return Shell::GetInstance()->input_method_filter()->input_method();
   }
 
+  virtual void RequestAudioInput(content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) OVERRIDE {
+    return;
+  }
+
   DISALLOW_COPY_AND_ASSIGN(DummyKeyboardControllerProxy);
 };
 
 }  // namespace
 
 namespace shell {
 
 ShellDelegateImpl::ShellDelegateImpl()
     : watcher_(NULL),
       launcher_delegate_(NULL),
@@ skipping 190 matching lines @@
 RootWindowHostFactory* ShellDelegateImpl::CreateRootWindowHostFactory() {
   return RootWindowHostFactory::Create();
 }
 
 base::string16 ShellDelegateImpl::GetProductName() const {
   return base::string16();
 }
 
 }  // namespace shell
 }  // namespace ash