VSYNC power hints are now sent via binder to IPowerManager. SurfaceFlinger no longer loads a second copy of the PowerHAL. VSYNC power hints are sent in batches and not on per frame basis. Change-Id: Icc2eee5df56135bd24dc244a84e7c12dd5511fec
Change-Id: I61c43dd76041816ab8cbe9aeaa55c11c1479ed03
Change-Id: I28c2faf9ff584df3e74392712971cbcf75eb9e98