Implement aura::WindowPortMus::CreateCompositorFrameSink()

components/viz/client/client_compositor_frame_sink.cc

Index: components/viz/client/client_compositor_frame_sink.cc
diff --git a/components/viz/client/client_compositor_frame_sink.cc b/components/viz/client/client_compositor_frame_sink.cc
index df0ad3f928eb32b6699386d8c3f8eb223a4fb50b..43874b0a5ae34bc579eb754687ec323d26aee0aa 100644
--- a/components/viz/client/client_compositor_frame_sink.cc
+++ b/components/viz/client/client_compositor_frame_sink.cc
@@ -24,12 +24,18 @@ ClientCompositorFrameSink::ClientCompositorFrameSink(
                               nullptr),
       compositor_frame_sink_info_(std::move(compositor_frame_sink_info)),
       client_request_(std::move(client_request)),
-      enable_surface_synchronization_(enable_surface_synchronization) {
+      enable_surface_synchronization_(enable_surface_synchronization),
+      weak_factory_(this) {
   DETACH_FROM_THREAD(thread_checker_);
 }
 
 ClientCompositorFrameSink::~ClientCompositorFrameSink() {}
 
+base::WeakPtr<ClientCompositorFrameSink>
+ClientCompositorFrameSink::GetWeakPtr() {

[Fady Samuel, 2017/06/07 17:36:26]

DCHECK_CALLED_ON_VALID_THREAD too?

[Peng, 2017/06/07 19:30:29]

Done.

+  return weak_factory_.GetWeakPtr();
+}
+
 bool ClientCompositorFrameSink::BindToClient(
     cc::CompositorFrameSinkClient* client) {
   if (!cc::CompositorFrameSink::BindToClient(client))
@@ -57,6 +63,7 @@ void ClientCompositorFrameSink::DetachFromClient() {
 
 void ClientCompositorFrameSink::SetLocalSurfaceId(
     const cc::LocalSurfaceId& local_surface_id) {
+  DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
   DCHECK(local_surface_id.is_valid());
   DCHECK(enable_surface_synchronization_);
   local_surface_id_ = local_surface_id;