tree 4737da1d3b14c5197fc8608c683591d5a804fac4
parent 7f40290b223afe1fea1d173da43e8e3d6ae49590
author Chia-I Wu <olv@google.com> 1510256193 -0800
committer Chia-I Wu <olv@google.com> 1511991537 -0800

surfaceflinger: return fence fd from RenderEngine::flush

The caller does not need to work with EGLSync after this chnage.

Test: SurfaceFlinger_test
Change-Id: I1cf7d11d3023d09be8a73001493c39b4309e7542