Merge changes If4126023,Iacda2386,I1eb691f7,Ib56139f8

* changes:
  Add support for sending VSYNC events to the framework
  BitTube::read now handles EAGAIN
  split ComposerService out of SurfaceComposerClient.h
  rewrite SF's message loop on top of Looper
tree: a3d18908fc1414742d97c93484de26b7ac8fffb9
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. MODULE_LICENSE_APACHE2
  7. NOTICE