Send hardware video frames with mailboxes.

media/base/video_frame.h

Index: media/base/video_frame.h
diff --git a/media/base/video_frame.h b/media/base/video_frame.h
index 9a6f0a67fddb27b3eb5772ddd6f7e717744506c8..9ed8e412811ec437c3f558f80619595df57f0528 100644
--- a/media/base/video_frame.h
+++ b/media/base/video_frame.h
@@ -7,6 +7,7 @@
 
 #include "base/callback.h"
 #include "base/md5.h"
+#include "gpu/command_buffer/common/mailbox.h"
 #include "media/base/buffers.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/size.h"
@@ -85,7 +86,7 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
   // |read_pixels_cb| may be used to do (slow!) readbacks from the
   // texture to main memory.
   static scoped_refptr<VideoFrame> WrapNativeTexture(
-      uint32 texture_id,
+      const gpu::Mailbox& texture_mailbox,
       uint32 texture_target,
       const gfx::Size& coded_size,
       const gfx::Rect& visible_rect,
@@ -156,9 +157,9 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
   // VideoFrame object and must not be freed by the caller.
   uint8* data(size_t plane) const;
 
-  // Returns the ID of the native texture wrapped by this frame.  Only valid to
-  // call if this is a NATIVE_TEXTURE frame.
-  uint32 texture_id() const;
+  // Returns the mailbox of the native texture wrapped by this frame.  Only
+  // valid to call if this is a NATIVE_TEXTURE frame.
+  const gpu::Mailbox& texture_mailbox() const;
 
   // Returns the texture target. Only valid for NATIVE_TEXTURE frames.
   uint32 texture_target() const;
@@ -215,8 +216,8 @@ class MEDIA_EXPORT VideoFrame : public base::RefCountedThreadSafe<VideoFrame> {
   // Array of data pointers to each plane.
   uint8* data_[kMaxPlanes];
 
-  // Native texture ID, if this is a NATIVE_TEXTURE frame.
-  uint32 texture_id_;
+  // Native texture mailbox, if this is a NATIVE_TEXTURE frame.
+  gpu::Mailbox texture_mailbox_;
   uint32 texture_target_;
   ReadPixelsCB read_pixels_cb_;