Remove VIEW_TYPE_WEB_CONTENTS and make default view type INVALID.

chrome/browser/speech/chrome_speech_recognition_manager_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
 #define CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 30 matching lines @@
   virtual void ShowInputVolume(int session_id,
                                float volume,
                                float noise_volume) OVERRIDE;
   virtual void ShowError(int session_id,
                          const content::SpeechRecognitionError& error) OVERRIDE;
   virtual void DoClose(int session_id) OVERRIDE;
 
  private:
   class OptionalRequestInfo;
 
-  // Checks for VIEW_TYPE_WEB_CONTENTS host in the UI thread and notifies back
+  // Checks for VIEW_TYPE_TAB_CONTENTS host in the UI thread and notifies back
   // the result in the IO thread through |callback|.
   static void CheckRenderViewType(
       int session_id,
       base::Callback<void(int session_id, bool is_allowed)> callback,
       int render_process_id,
       int render_view_id);
 
   scoped_refptr<SpeechRecognitionBubbleController> bubble_controller_;
   scoped_refptr<OptionalRequestInfo> optional_request_info_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeSpeechRecognitionManagerDelegate);
 };
 
 }  // namespace speech
 
 #endif  // CHROME_BROWSER_SPEECH_CHROME_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_