Add gpu::MailboxHolder to hold state for a gpu::Mailbox

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 8a4eb3cce2b62f57daa5f4ee6dcf961157806a16..b71f4273e6f3708e38adbdd21cb39cf146082d10 100644
--- a/media/base/video_frame.cc
+++ b/media/base/video_frame.cc
@@ -91,24 +91,22 @@ bool VideoFrame::IsValidConfig(VideoFrame::Format format,
 
 // static
 scoped_refptr<VideoFrame> VideoFrame::WrapNativeTexture(
-    scoped_ptr<MailboxHolder> mailbox_holder,
-    uint32 texture_target,
+    scoped_ptr<gpu::MailboxHolder> mailbox_holder,
+    const ReleaseMailboxCB& mailbox_holder_release_cb,
     const gfx::Size& coded_size,
     const gfx::Rect& visible_rect,
     const gfx::Size& natural_size,
     base::TimeDelta timestamp,
-    const ReadPixelsCB& read_pixels_cb,
-    const base::Closure& no_longer_needed_cb) {
+    const ReadPixelsCB& read_pixels_cb) {
   scoped_refptr<VideoFrame> frame(new VideoFrame(NATIVE_TEXTURE,
                                                  coded_size,
                                                  visible_rect,
                                                  natural_size,
                                                  timestamp,
                                                  false));
-  frame->texture_mailbox_holder_ = mailbox_holder.Pass();
-  frame->texture_target_ = texture_target;
+  frame->mailbox_holder_ = mailbox_holder.Pass();
+  frame->mailbox_holder_release_cb_ = mailbox_holder_release_cb;
   frame->read_pixels_cb_ = read_pixels_cb;
-  frame->no_longer_needed_cb_ = no_longer_needed_cb;
 
   return frame;
 }
@@ -408,7 +406,6 @@ VideoFrame::VideoFrame(VideoFrame::Format format,
       coded_size_(coded_size),
       visible_rect_(visible_rect),
       natural_size_(natural_size),
-      texture_target_(0),
       shared_memory_handle_(base::SharedMemory::NULLHandle()),
       timestamp_(timestamp),
       end_of_stream_(end_of_stream) {
@@ -417,6 +414,10 @@ VideoFrame::VideoFrame(VideoFrame::Format format,
 }
 
 VideoFrame::~VideoFrame() {
+  if (!mailbox_holder_release_cb_.is_null()) {
+    base::ResetAndReturn(&mailbox_holder_release_cb_)
+        .Run(mailbox_holder_.Pass());
+  }
   if (!no_longer_needed_cb_.is_null())
     base::ResetAndReturn(&no_longer_needed_cb_).Run();
 }
@@ -487,14 +488,9 @@ uint8* VideoFrame::data(size_t plane) const {
   return data_[plane];
 }
 
-VideoFrame::MailboxHolder* VideoFrame::texture_mailbox() const {
-  DCHECK_EQ(format_, NATIVE_TEXTURE);
-  return texture_mailbox_holder_.get();
-}
-
-uint32 VideoFrame::texture_target() const {
+gpu::MailboxHolder* VideoFrame::mailbox_holder() const {
   DCHECK_EQ(format_, NATIVE_TEXTURE);
-  return texture_target_;
+  return mailbox_holder_.get();
 }
 
 base::SharedMemoryHandle VideoFrame::shared_memory_handle() const {
@@ -513,17 +509,4 @@ void VideoFrame::HashFrameForTesting(base::MD5Context* context) {
   }
 }
 
-VideoFrame::MailboxHolder::MailboxHolder(
-    const gpu::Mailbox& mailbox,
-    unsigned sync_point,
-    const TextureNoLongerNeededCallback& release_callback)
-    : mailbox_(mailbox),
-      sync_point_(sync_point),
-      release_callback_(release_callback) {}
-
-VideoFrame::MailboxHolder::~MailboxHolder() {
-  if (!release_callback_.is_null())
-    release_callback_.Run(sync_point_);
-}
-
 }  // namespace media