gpu video: optimize HW video to SW canvas and implement it for WebRTC.

content/renderer/media/video_capture_impl.cc

Index: content/renderer/media/video_capture_impl.cc
diff --git a/content/renderer/media/video_capture_impl.cc b/content/renderer/media/video_capture_impl.cc
index 9688b464680fb8271cbec4a7882ef16391324f5d..77d9ac1fcee556fa3f8c12aabf6e6a93708cd432 100644
--- a/content/renderer/media/video_capture_impl.cc
+++ b/content/renderer/media/video_capture_impl.cc
@@ -258,8 +258,6 @@ void VideoCaptureImpl::OnBufferReceived(int buffer_id,
   }
 }
 
-static void NullReadPixelsCB(const SkBitmap& bitmap) { NOTIMPLEMENTED(); }
-
 void VideoCaptureImpl::OnMailboxBufferReceived(
     int buffer_id,
     const gpu::MailboxHolder& mailbox_holder,
@@ -278,16 +276,11 @@ void VideoCaptureImpl::OnMailboxBufferReceived(
 
   scoped_refptr<media::VideoFrame> frame = media::VideoFrame::WrapNativeTexture(
       make_scoped_ptr(new gpu::MailboxHolder(mailbox_holder)),
-      media::BindToCurrentLoop(
-          base::Bind(&VideoCaptureImpl::OnClientBufferFinished,
-                     weak_factory_.GetWeakPtr(),
-                     buffer_id,
-                     scoped_refptr<ClientBuffer>())),
-      last_frame_format_.frame_size,
-      gfx::Rect(last_frame_format_.frame_size),
-      last_frame_format_.frame_size,
-      timestamp - first_frame_timestamp_,
-      base::Bind(&NullReadPixelsCB));
+      media::BindToCurrentLoop(base::Bind(
+          &VideoCaptureImpl::OnClientBufferFinished, weak_factory_.GetWeakPtr(),
+          buffer_id, scoped_refptr<ClientBuffer>())),
+      last_frame_format_.frame_size, gfx::Rect(last_frame_format_.frame_size),
+      last_frame_format_.frame_size, timestamp - first_frame_timestamp_);
 
   for (ClientInfoMap::iterator it = clients_.begin(); it != clients_.end();
        ++it) {