Add support for external video renderers in mojo.

media/mojo/services/renderer_config.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 "media/mojo/services/renderer_config.h"
 
 namespace media {
 
 namespace internal {
 extern scoped_ptr<PlatformRendererConfig> CreatePlatformRendererConfig();
 }  // namespace internal
 
 static base::LazyInstance<RendererConfig>::Leaky g_platform_config =
     LAZY_INSTANCE_INITIALIZER;
 
 // static
 RendererConfig* RendererConfig::Get() {
   return g_platform_config.Pointer();
 }
 
 ScopedVector<AudioDecoder> RendererConfig::GetAudioDecoders(
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const LogCB& media_log_cb) {
   return renderer_config_->GetAudioDecoders(media_task_runner, media_log_cb);
 }
 
+ScopedVector<VideoDecoder> RendererConfig::GetVideoDecoders(
+    const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
+    const LogCB& media_log_cb) {
+  return renderer_config_->GetVideoDecoders(media_task_runner, media_log_cb);
+}
+
 scoped_refptr<AudioRendererSink> RendererConfig::GetAudioRendererSink() {
   return renderer_config_->GetAudioRendererSink();
 }
 
 const AudioHardwareConfig& RendererConfig::GetAudioHardwareConfig() {
   return renderer_config_->GetAudioHardwareConfig();
 }
 
 RendererConfig::RendererConfig()
     : renderer_config_(internal::CreatePlatformRendererConfig().Pass()) {
 }
 
 RendererConfig::~RendererConfig() {
 }
 
 }  // namespace media