Changes code using Compositor to pass in ContextFactory

ui/aura/test/aura_test_helper.h

Index: ui/aura/test/aura_test_helper.h
diff --git a/ui/aura/test/aura_test_helper.h b/ui/aura/test/aura_test_helper.h
index 05d59abe1fca907f4f1bd1ed60f1277faddcdf2b..d547b0cb07895be1c77ecb1d88abe62aa1864291 100644
--- a/ui/aura/test/aura_test_helper.h
+++ b/ui/aura/test/aura_test_helper.h
@@ -15,6 +15,7 @@ class MessageLoopForUI;
 }
 
 namespace ui {
+class ContextFactory;
 class InputMethod;
 class ScopedAnimationDurationScaleMode;
 }
@@ -37,7 +38,7 @@ class AuraTestHelper {
   ~AuraTestHelper();
 
   // Creates and initializes (shows and sizes) the RootWindow for use in tests.
-  void SetUp();
+  void SetUp(ui::ContextFactory* context_factory);
 
   // Clean up objects that are created for tests. This also deletes the Env
   // object.