cc: Send all begin frames using a PostTask.

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 f923cd385d483e136a72e1643b86763f86ac8fda..f564664235f8dee5494d752f14b764db073379f6 100644
--- a/ui/compositor/test/in_process_context_factory.cc
+++ b/ui/compositor/test/in_process_context_factory.cc
@@ -170,9 +170,7 @@ void InProcessContextFactory::CreateOutputSurface(
 
   if (surface_manager_) {
     std::unique_ptr<cc::DelayBasedBeginFrameSource> begin_frame_source(
-        new cc::DelayBasedBeginFrameSource(
-            base::MakeUnique<cc::DelayBasedTimeSource>(
-                compositor->task_runner().get())));
+        new cc::DelayBasedBeginFrameSource(compositor->task_runner().get()));
     std::unique_ptr<cc::DisplayScheduler> scheduler(new cc::DisplayScheduler(
         begin_frame_source.get(), compositor->task_runner().get(),
         display_output_surface->capabilities().max_frames_pending));
@@ -201,8 +199,7 @@ std::unique_ptr<Reflector> InProcessContextFactory::CreateReflector(
   return base::WrapUnique(new FakeReflector);
 }
 
-void InProcessContextFactory::RemoveReflector(Reflector* reflector) {
-}
+void InProcessContextFactory::RemoveReflector(Reflector* reflector) {}
 
 scoped_refptr<cc::ContextProvider>
 InProcessContextFactory::SharedMainThreadContextProvider() {