Integrate VDA with WebRTC.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index aaf2b41f45f5b433484af6ed212f4425bf20b37d..3c915f4efa6211e8d430313994500eef9f345eaf 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -68,6 +68,7 @@
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/midi_message_filter.h"
 #include "content/renderer/media/peer_connection_tracker.h"
+#include "content/renderer/media/renderer_gpu_video_decoder_factories.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/media/video_capture_message_filter.h"
 #include "content/renderer/memory_benchmarking_extension.h"
@@ -870,6 +871,29 @@ void RenderThreadImpl::PostponeIdleNotification() {
   idle_notifications_to_skip_ = 2;
 }
 
+scoped_refptr<media::GpuVideoDecoder::Factories>
+RenderThreadImpl::GetGpuFactories() {
+  DCHECK(IsMainThread());
+
+  const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
+  scoped_refptr<media::GpuVideoDecoder::Factories> gpu_factories;
+  WebGraphicsContext3DCommandBufferImpl* context3d = NULL;
+  if (!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode))
+    context3d = GetGpuVDAContext3D();
+  if (context3d) {
+    scoped_refptr<base::MessageLoopProxy> factories_loop =
+        compositor_message_loop_proxy();
+    if (!factories_loop.get())
+      factories_loop = base::MessageLoopProxy::current();
+    GpuChannelHost* gpu_channel_host = EstablishGpuChannelSync(
+        CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
+    if (gpu_channel_host)
+      gpu_factories = new RendererGpuVideoDecoderFactories(
+          gpu_channel_host, factories_loop, context3d);

[piman, 2013/07/09 19:35:22]

nit: if the statement spans more than 1 line, braces are required per style
guide.

[wuchengli, 2013/07/09 22:29:26]

Done.

+  }
+  return gpu_factories;
+}
+
 /* static */
 void RenderThreadImpl::OnGpuVDAContextLoss() {
   RenderThreadImpl* self = RenderThreadImpl::current();