[Ozone] Removing Stub SFO implementation & CreateTestHelper from SFO

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 1f201a669bde3355e60ce4747a187cf4020a054b..6b4215ffad418ee9244b05da2c4367ee594f6340 100644
--- a/ui/aura/test/aura_test_helper.h
+++ b/ui/aura/test/aura_test_helper.h
@@ -13,10 +13,6 @@ namespace base {
 class MessageLoopForUI;
 }
 
-namespace gfx {
-class SurfaceFactoryOzone;
-}
-
 namespace ui {
 class InputMethod;
 class ScopedAnimationDurationScaleMode;
@@ -69,10 +65,6 @@ class AuraTestHelper {
   scoped_ptr<TestScreen> test_screen_;
   scoped_ptr<ui::ScopedAnimationDurationScaleMode> zero_duration_mode_;
 
-#if defined(USE_OZONE)
-  scoped_ptr<gfx::SurfaceFactoryOzone> surface_factory_;
-#endif
-
   DISALLOW_COPY_AND_ASSIGN(AuraTestHelper);
 };