am ba461c4c: Use VBO and cache NinePatch coordinates calculation.

Merge commit 'ba461c4c5269d1d4361a29cb5b6de4dc55682499' into gingerbread-plus-aosp

* commit 'ba461c4c5269d1d4361a29cb5b6de4dc55682499':
  Use VBO and cache NinePatch coordinates calculation.