remove VideoDeviceError and AudioDeviceError for media stream.

content/browser/renderer_host/media/video_capture_controller.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/renderer_host/media/video_capture_controller.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 320 matching lines @@
     default:
       NOTREACHED();
   }
 
   BrowserThread::PostTask(BrowserThread::IO,
       FROM_HERE,
       base::Bind(&VideoCaptureController::DoIncomingCapturedFrameOnIOThread,
                  this, buffer_id, timestamp));
 }
 
-// TODO(perkj): Need to decide if the error should be sent to
-// |video_capture_manager_| or if it enough to tell the
-// VideoCaptureMessageFilter in the render process that the device failed.
 void VideoCaptureController::OnError() {
   BrowserThread::PostTask(BrowserThread::IO,
       FROM_HERE,
       base::Bind(&VideoCaptureController::DoErrorOnIOThread, this));
 }
 
 void VideoCaptureController::OnFrameInfo(
     const media::VideoCaptureCapability& info) {
   frame_info_= info;
   // Handle cases when |info| has odd numbers for width/height.
@@ skipping 219 matching lines @@
 bool VideoCaptureController::ClientHasDIB() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   base::AutoLock lock(lock_);
   for (DIBMap::iterator dib_it = owned_dibs_.begin();
        dib_it != owned_dibs_.end(); dib_it++) {
     if (dib_it->second->references > 0)
       return true;
   }
   return false;
 }