remove VideoDeviceError and AudioDeviceError for media stream.

content/browser/speech/speech_recognition_manager_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 "content/browser/speech/speech_recognition_manager_impl.h"
 
 #include "base/bind.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/speech/google_one_shot_remote_engine.h"
@@ skipping 93 matching lines @@
     callback_.Run(true);
   }
 
   virtual void StreamGenerationFailed(const std::string& label) OVERRIDE {
     DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
     started_ = false;
     callback_.Run(false);
   }
 
   // The callbacks below are ignored.
-  virtual void AudioDeviceFailed(const std::string& label,
-                                 int index) OVERRIDE {}
-  virtual void VideoDeviceFailed(const std::string& label,
-                                 int index) OVERRIDE {}
   virtual void DevicesEnumerated(
       const std::string& label,
       const media_stream::StreamDeviceInfoArray& devices) OVERRIDE {}
   virtual void DeviceOpened(
       const std::string& label,
       const media_stream::StreamDeviceInfo& device_info) OVERRIDE {}
 
  private:
   int session_id_;
   base::Callback<void(bool is_allowed)> callback_;
@@ skipping 544 matching lines @@
 
 SpeechRecognitionManagerImpl::Session::Session()
   : id(kSessionIDInvalid),
     listener_is_active(true) {
 }
 
 SpeechRecognitionManagerImpl::Session::~Session() {
 }
 
 }  // namespace speech