am 1bcb8b1a: Merge "surfaceflinger / GL extensions cleanup" into gingerbread

Merge commit '1bcb8b1afbfa2fc387a0f7068740f1efbe9a1f69' into gingerbread-plus-aosp

* commit '1bcb8b1afbfa2fc387a0f7068740f1efbe9a1f69':
  surfaceflinger / GL extensions cleanup