Replace usage of SurfaceId's client_id with FrameSinkId

ui/compositor/test/in_process_context_factory.cc

Index: ui/compositor/test/in_process_context_factory.cc
diff --git a/ui/compositor/test/in_process_context_factory.cc b/ui/compositor/test/in_process_context_factory.cc
index 5c3fe0a58a368f017b96193be2cef168afc97cad..7c7d8b9772c563e7eccaea6f39a0f7e1c242e6c8 100644
--- a/ui/compositor/test/in_process_context_factory.cc
+++ b/ui/compositor/test/in_process_context_factory.cc
@@ -253,8 +253,8 @@ cc::TaskGraphRunner* InProcessContextFactory::GetTaskGraphRunner() {
   return &task_graph_runner_;
 }
 
-uint32_t InProcessContextFactory::AllocateSurfaceClientId() {
-  return next_surface_client_id_++;
+cc::FrameSinkId InProcessContextFactory::AllocateFrameSinkId() {
+  return cc::FrameSinkId(next_surface_client_id_++, 0);
 }
 
 cc::SurfaceManager* InProcessContextFactory::GetSurfaceManager() {