Transfer media::VideoFrame using mojo shared memory

media/mojo/common/mojo_shared_buffer_video_frame.cc

Index: media/mojo/common/mojo_shared_buffer_video_frame.cc
diff --git a/media/mojo/common/mojo_shared_buffer_video_frame.cc b/media/mojo/common/mojo_shared_buffer_video_frame.cc
index fa226c26071e167599972d345ad040488a7c8d01..3fca408b8e58e0c1ff0604507c8003214e142c5b 100644
--- a/media/mojo/common/mojo_shared_buffer_video_frame.cc
+++ b/media/mojo/common/mojo_shared_buffer_video_frame.cc
@@ -144,4 +144,12 @@ size_t MojoSharedBufferVideoFrame::PlaneOffset(size_t plane) const {
   return offsets_[plane];
 }
 
+const mojo::SharedBufferHandle& MojoSharedBufferVideoFrame::Handle() const {
+  return shared_buffer_handle_.get();
+}
+
+size_t MojoSharedBufferVideoFrame::MappedSize() const {
+  return shared_buffer_size_;
+}
+
 }  // namespace media