Send hardware video frames with mailboxes.

media/base/video_frame.cc

Index: media/base/video_frame.cc
diff --git a/media/base/video_frame.cc b/media/base/video_frame.cc
index 62e81ca574d841f07127e7a50a6896bf8dc6bba2..d43ffc626fa1c2c689831e4832f6c2d4dcc7bdee 100644
--- a/media/base/video_frame.cc
+++ b/media/base/video_frame.cc
@@ -63,7 +63,7 @@ bool VideoFrame::IsValidConfig(VideoFrame::Format format,
 
 // static
 scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
-    uint32 texture_id,
+    const gpu::Mailbox& texture_mailbox,
     uint32 texture_target,
     const gfx::Size& coded_size,
     const gfx::Rect& visible_rect,
@@ -73,7 +73,7 @@ scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
     const base::Closure& no_longer_needed_cb) {
   scoped_refptr<VideoFrame> frame(new VideoFrame(
       NATIVE_TEXTURE, coded_size, visible_rect, natural_size, timestamp));
-  frame->texture_id_ = texture_id;
+  frame->texture_mailbox_ = texture_mailbox;
   frame->texture_target_ = texture_target;
   frame->read_pixels_cb_ = read_pixels_cb;
   frame->no_longer_needed_cb_ = no_longer_needed_cb;
@@ -253,7 +253,6 @@ VideoFrame::VideoFrame(VideoFrame::Format format,
       coded_size_(coded_size),
       visible_rect_(visible_rect),
       natural_size_(natural_size),
-      texture_id_(0),
       texture_target_(0),
       timestamp_(timestamp) {
   memset(&strides_, 0, sizeof(strides_));
@@ -325,9 +324,9 @@ uint8* VideoFrame::data(size_t plane) const {
   return data_[plane];
 }
 
-uint32 VideoFrame::texture_id() const {
+const gpu::Mailbox& VideoFrame::texture_mailbox() const {
   DCHECK_EQ(format_, NATIVE_TEXTURE);
-  return texture_id_;
+  return texture_mailbox_;
 }
 
 uint32 VideoFrame::texture_target() const {