Add initialization callback support for Video Decoder PPAPI.

content/renderer/pepper_platform_video_decoder_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/pepper_platform_video_decoder_impl.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 33 matching lines @@
   channel_ = render_thread->EstablishGpuChannelSync(
       content::CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
 
   if (!channel_.get())
     return false;
 
   DCHECK_EQ(channel_->state(), GpuChannelHost::kConnected);
 
   // Set a callback to ensure decoder is only initialized after channel is
   // connected and GpuVidoServiceHost message filter is added to channel.
-  //
-  // TODO(vrk): Initialize should take a callback to be called (on the
-  // renderer's thread) when initialization is completed.
   base::Closure initialize = base::Bind(
       &PlatformVideoDecoderImpl::InitializeDecoder,
       base::Unretained(this),
       config);
 
   GpuVideoServiceHost* video_service = channel_->gpu_video_service_host();
   video_service->SetOnInitialized(initialize);
   return true;
 }
 
@@ skipping 63 matching lines @@
 }
 
 void PlatformVideoDecoderImpl::DismissPictureBuffer(int32 picture_buffer_id) {
   client_->DismissPictureBuffer(picture_buffer_id);
 }
 
 void PlatformVideoDecoderImpl::PictureReady(const media::Picture& picture) {
   client_->PictureReady(picture);
 }
 
+void PlatformVideoDecoderImpl::NotifyInitializeDone() {
+  client_->NotifyInitializeDone();
+}
+
 void PlatformVideoDecoderImpl::NotifyEndOfBitstreamBuffer(
     int32 bitstream_buffer_id) {
   client_->NotifyEndOfBitstreamBuffer(bitstream_buffer_id);
 }
 
 void PlatformVideoDecoderImpl::NotifyFlushDone() {
   client_->NotifyFlushDone();
 }
 
 void PlatformVideoDecoderImpl::NotifyAbortDone() {
   client_->NotifyAbortDone();
 }