Run VDA::Decode on GPU IO thread if VDA supports it.

content/common/gpu/media/dxva_video_decode_accelerator.cc

Index: content/common/gpu/media/dxva_video_decode_accelerator.cc
diff --git a/content/common/gpu/media/dxva_video_decode_accelerator.cc b/content/common/gpu/media/dxva_video_decode_accelerator.cc
index fa4dc5cf67c2ca7a94111b609eb403749b01b00b..9be14e9c15271767f39628ab301fb8fb8e4a1994 100644
--- a/content/common/gpu/media/dxva_video_decode_accelerator.cc
+++ b/content/common/gpu/media/dxva_video_decode_accelerator.cc
@@ -514,6 +514,15 @@ bool DXVAVideoDecodeAccelerator::Initialize(media::VideoCodecProfile profile) {
 
 void DXVAVideoDecodeAccelerator::Decode(
     const media::BitstreamBuffer& bitstream_buffer) {
+  if (!child_message_loop_->BelongsToCurrentThread) {

[piman, 2013/08/27 04:01:20]

You're missing the () to BelongsToCurrentThread().

[wuchengli, 2013/08/27 12:32:24]

Embarrassing... This part is reverted because of CanDecodeOnIOThread.

+    child_message_loop_->PostTask(
+        FROM_HERE,
+        base::Bind(&DXVAVideoDecodeAccelerator::Decode,
+                   base::AsWeakPtr(this),
+                   bitstream_buffer));
+    return;
+  }
+
   DCHECK(CalledOnValidThread());
 
   RETURN_AND_NOTIFY_ON_FAILURE((state_ == kNormal || state_ == kStopped ||