Changes code using Compositor to pass in ContextFactory

ui/aura/test/test_screen.h

Index: ui/aura/test/test_screen.h
diff --git a/ui/aura/test/test_screen.h b/ui/aura/test/test_screen.h
index 28351d20d39312ae406c379b89abfe5636c9e71d..1b14a37b42be258355812e976081e3a04322eae6 100644
--- a/ui/aura/test/test_screen.h
+++ b/ui/aura/test/test_screen.h
@@ -15,6 +15,10 @@ class Rect;
 class Transform;
 }
 
+namespace ui {
+class ContextFactory;
+}
+
 namespace aura {
 class Window;
 class WindowTreeHost;
@@ -28,7 +32,8 @@ class TestScreen : public gfx::Screen,
   static TestScreen* CreateFullscreen();
   virtual ~TestScreen();
 
-  WindowTreeHost* CreateHostForPrimaryDisplay();
+  WindowTreeHost* CreateHostForPrimaryDisplay(
+      ui::ContextFactory* context_factory);
 
   void SetDeviceScaleFactor(float device_scale_fator);
   void SetDisplayRotation(gfx::Display::Rotation rotation);