tree e38235ec79791f4d3b10b87720e90b8dc158c073
parent 215c2ad55d7b2ccd4461033eb697abf0bd5c7f98
author fsamuel <fsamuel@chromium.org> 1490760617 -0700
committer Commit bot <commit-bot@chromium.org> 1490760617 +0000

Mus-WS / Aura-Mus: Propagate LocalSurfaceId on WindowTreeHost creation

This CL optionally propagates the current cc::LocalSurfaceId associated
with a ServerWindow up to the WindowTreeHost embedded within it. When
surface synchronization is turned on, the WindowTreeHost will submit
CompositorFrames to that cc::LocalSurfaceId.

This CL makes no functional changes other than propagation of the
current cc::LocalSurfaceId on:

1. WindowTree::OnEmbed
2. WindowTree::OnTopLevelCreated
3. WindowManager::WmNewDisplayAdded

It is valid for a client to be embedded before a window has been given a
size and so the cc::LocalSurfaceId is passed around optionally.

BUG=672962

Review-Url: https://codereview.chromium.org/2778363002
Cr-Commit-Position: refs/heads/master@{#460271}