Verify returned frames from media::VideoFrame::Wrap*() methods

content/renderer/media/webrtc/media_stream_remote_video_source.cc

 // Copyright 2014 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/webrtc/media_stream_remote_video_source.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 101 matching lines @@
     // reference counted frame buffer. Const cast and hope no one will overwrite
     // the data.
     // TODO(magjed): Update media::VideoFrame to support const data so we don't
     // need to const cast here.
     video_frame = media::VideoFrame::WrapExternalYuvData(
         media::PIXEL_FORMAT_YV12, size, gfx::Rect(size), size,
         frame->GetYPitch(), frame->GetUPitch(), frame->GetVPitch(),
         const_cast<uint8_t*>(frame->GetYPlane()),
         const_cast<uint8_t*>(frame->GetUPlane()),
         const_cast<uint8_t*>(frame->GetVPlane()), elapsed_timestamp);
+    if (!video_frame)
+      return;
     video_frame->AddDestructionObserver(
         base::Bind(&base::DeletePointer<cricket::VideoFrame>, frame->Copy()));
   }
 
   video_frame->metadata()->SetTimeTicks(
       media::VideoFrameMetadata::REFERENCE_TIME, render_time);
 
   io_task_runner_->PostTask(
       FROM_HERE, base::Bind(&RemoteVideoSourceDelegate::DoRenderFrameOnIOThread,
                             this, video_frame));
@@ skipping 87 matching lines @@
     case webrtc::MediaStreamTrackInterface::kEnded:
       SetReadyState(blink::WebMediaStreamSource::ReadyStateEnded);
       break;
     default:
       NOTREACHED();
       break;
   }
 }
 
 }  // namespace content