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

services/ui/public/interfaces/window_manager.mojom

Index: services/ui/public/interfaces/window_manager.mojom
diff --git a/services/ui/public/interfaces/window_manager.mojom b/services/ui/public/interfaces/window_manager.mojom
index e90564b06d950f628aa58a73665d682f1d58faf6..e95531542160bed2ab1323e8ed025eab998ca7e2 100644
--- a/services/ui/public/interfaces/window_manager.mojom
+++ b/services/ui/public/interfaces/window_manager.mojom
@@ -5,6 +5,7 @@
 module ui.mojom;
 
 import "cc/ipc/frame_sink_id.mojom";
+import "cc/ipc/local_surface_id.mojom";
 import "services/ui/public/interfaces/cursor.mojom";
 import "services/ui/public/interfaces/event_matcher.mojom";
 import "services/ui/public/interfaces/window_manager_constants.mojom";
@@ -156,7 +157,8 @@ interface WindowManager {
   WmNewDisplayAdded(display.mojom.Display display,
                     WindowData root,
                     bool parent_drawn,
-                    cc.mojom.FrameSinkId frame_sink_id);
+                    cc.mojom.FrameSinkId frame_sink_id,
+                    cc.mojom.LocalSurfaceId? local_surface_id);

[sky, 2017/03/28 22:35:31]

Please document under what conditionsl local_surface_id is not available. This
comment applies to all mojoms you're changing.

[Fady Samuel, 2017/03/28 23:30:30]

Done.

 
   // Called when a display is removed. The root of the specified display is
   // still valid. It is expected the client calls DeleteWindow() shortly after