Make VideoDecoder use (kAborted, NULL) to signify an aborted decode, instead of (kOk, NULL).

media/filters/ffmpeg_video_decoder.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 "media/filters/ffmpeg_video_decoder.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 181 matching lines @@
 }
 
 void FFmpegVideoDecoder::Stop(const base::Closure& closure) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   base::ScopedClosureRunner runner(BindToCurrentLoop(closure));
 
   if (state_ == kUninitialized)
     return;
 
   if (!decode_cb_.is_null()) {
-    base::ResetAndReturn(&decode_cb_).Run(kOk, NULL);
+    base::ResetAndReturn(&decode_cb_).Run(kAborted, NULL);
     // Reset is pending only when decode is pending.
     if (!reset_cb_.is_null())
       base::ResetAndReturn(&reset_cb_).Run();
   }
 
   ReleaseFFmpegResources();
   state_ = kUninitialized;
 }
 
 FFmpegVideoDecoder::~FFmpegVideoDecoder() {
@@ skipping 165 matching lines @@
   if (!codec || avcodec_open2(codec_context_.get(), codec, NULL) < 0) {
     ReleaseFFmpegResources();
     return false;
   }
 
   av_frame_.reset(av_frame_alloc());
   return true;
 }
 
 }  // namespace media