Merge "bug#460672 framebuffer surface can\'t keep triple buffer if define NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3"
am: b2e3095a60

* commit 'b2e3095a604e16d5d80d1e3d38bb92a6c37bd127':
  bug#460672 framebuffer surface can't keep triple buffer if define NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3