GitLab

CompositorFrameSink implements cc::mojom::MojoCompositorFrameSink.

CompositorFrameSink is no longer a friend class of exo::Surface.

Added exo::CompositorFrameSinkHolder class that implements cc::mojom::MojoCompositorFrameSinkClient.

BUG=659601
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel

Review-Url: https://codereview.chromium.org/2493223002
Cr-Commit-Position: refs/heads/master@{#437705}