Fix Pipeline to properly handle errors during initialization.

media/base/pipeline.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/base/pipeline.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 603 matching lines @@
 void Pipeline::InitializeTask(PipelineStatus last_stage_status) {
   DCHECK(message_loop_->BelongsToCurrentThread());
 
   if (last_stage_status != PIPELINE_OK) {
     // Currently only VideoDecoders have a recoverable error code.
     if (state_ == kInitVideoDecoder &&
         last_stage_status == DECODER_ERROR_NOT_SUPPORTED) {
       state_ = kInitAudioRenderer;
     } else {
       SetError(last_stage_status);
+      return;
     }
   }
 
   // If we have received the stop or error signal, return immediately.
   if (IsPipelineStopPending() || IsPipelineStopped() || !IsPipelineOk())
     return;
 
   DCHECK(state_ == kInitDemuxer ||
          state_ == kInitAudioDecoder ||
          state_ == kInitAudioRenderer ||
@@ skipping 642 matching lines @@
 void Pipeline::StartClockIfWaitingForTimeUpdate_Locked() {
   lock_.AssertAcquired();
   if (!waiting_for_clock_update_)
     return;
 
   waiting_for_clock_update_ = false;
   clock_->Play();
 }
 
 }  // namespace media