IGraphicBufferConsumer: fix ATTACH_BUFFER info leak am: dded8fdbb7 am: 7ee203b59d am: dc252255af am: 202aaa8f97
am: ec87aa5218

* commit 'ec87aa52189d5d3bbf5df214ab099d5de9f5836c':
  IGraphicBufferConsumer: fix ATTACH_BUFFER info leak