am b7d1be01: Merge "Fix a couple issues with the new hwcomposer HAL" into gingerbread

Merge commit 'b7d1be01ae44428b947823fc48c1c126dcaa9732' into gingerbread-plus-aosp

* commit 'b7d1be01ae44428b947823fc48c1c126dcaa9732':
  Fix a couple issues with the new hwcomposer HAL