Send hardware video frames with mailboxes.

content/renderer/media/stream_texture_factory_impl_android.cc

Index: content/renderer/media/stream_texture_factory_impl_android.cc
diff --git a/content/renderer/media/stream_texture_factory_impl_android.cc b/content/renderer/media/stream_texture_factory_impl_android.cc
index b33c9246628f5f071fc8a06a2a36acce8b6c7220..f706fec4c6deced0bb2196a71000202c75e337dd 100644
--- a/content/renderer/media/stream_texture_factory_impl_android.cc
+++ b/content/renderer/media/stream_texture_factory_impl_android.cc
@@ -116,18 +116,30 @@ void StreamTextureFactoryImpl::EstablishPeer(int stream_id, int player_id) {
       stream_id, view_id_, player_id));
 }
 
-unsigned StreamTextureFactoryImpl::CreateStreamTexture(unsigned* texture_id) {
+unsigned StreamTextureFactoryImpl::CreateStreamTexture(
+    unsigned texture_target,
+    unsigned* texture_id,
+    gpu::Mailbox* texture_mailbox,
+    unsigned* texture_mailbox_sync_point) {
   unsigned stream_id = 0;
   if (context_->makeContextCurrent()) {
     *texture_id = context_->createTexture();
     stream_id = context_->createStreamTextureCHROMIUM(*texture_id);
+
+    context_->genMailboxCHROMIUM(texture_mailbox->name);
+    context_->bindTexture(texture_target, *texture_id);
+    context_->produceTextureCHROMIUM(texture_target, texture_mailbox->name);
+
     context_->flush();
+    *texture_mailbox_sync_point = context_->insertSyncPoint();
   }
   return stream_id;
 }
 
 void StreamTextureFactoryImpl::DestroyStreamTexture(unsigned texture_id) {
   if (context_->makeContextCurrent()) {
+    // TODO(sievers): Make the destroyStreamTexture implicit when the last
+    // texture referencing it is lost.
     context_->destroyStreamTextureCHROMIUM(texture_id);
     context_->deleteTexture(texture_id);
     context_->flush();