refactor video capture in renderer process

content/renderer/media/media_stream_impl.cc

 // Copyright (c) 2011 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/renderer/media/media_stream_impl.h"
 
 #include "base/string_util.h"
 #include "content/renderer/media/capture_video_decoder.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "googleurl/src/gurl.h"
@@ skipping 24 matching lines @@
   bool raw_media = (url.spec().find(kRawMediaScheme) == 0);
   media::VideoDecoder* decoder = NULL;
   if (raw_media) {
     media::VideoCapture::VideoCaptureCapability capability;
     capability.width = kVideoCaptureWidth;
     capability.height = kVideoCaptureHeight;
     capability.max_fps = kVideoCaptureFramePerSecond;
     capability.expected_capture_delay = 0;
     capability.raw_type = media::VideoFrame::I420;
     capability.interlaced = false;
-    capability.resolution_fixed = false;
 
     decoder = new CaptureVideoDecoder(
         message_loop_factory->GetMessageLoopProxy("CaptureVideoDecoder").get(),
         kStartOpenSessionId, vc_manager_.get(), capability);
   }
   return decoder;
 }