Make ui::Compositor use ui::Scheduler

ui/compositor/test/in_process_context_factory.h

Index: ui/compositor/test/in_process_context_factory.h
diff --git a/ui/compositor/test/in_process_context_factory.h b/ui/compositor/test/in_process_context_factory.h
index 6fd4eaa39f658b72faaffd233367363b866c61c1..8135088dcf4bae1ee4772c44f1ef46e2fb32c8e3 100644
--- a/ui/compositor/test/in_process_context_factory.h
+++ b/ui/compositor/test/in_process_context_factory.h
@@ -23,7 +23,7 @@ namespace ui {
 
 class InProcessContextFactory : public ContextFactory {
  public:
-  InProcessContextFactory();
+  InProcessContextFactory(bool context_factory_for_test);
   ~InProcessContextFactory() override;
 
   // If true (the default) an OutputSurface is created that does not display
@@ -59,6 +59,8 @@ class InProcessContextFactory : public ContextFactory {
   uint32_t next_surface_id_namespace_;
   bool use_test_surface_;
 
+  const bool context_factory_for_test_;
+
   DISALLOW_COPY_AND_ASSIGN(InProcessContextFactory);
 };