Changes code using Compositor to pass in ContextFactory

ash/display/mirror_window_controller.h

Index: ash/display/mirror_window_controller.h
diff --git a/ash/display/mirror_window_controller.h b/ash/display/mirror_window_controller.h
index beb703ad577e29b6d69bf5f5aa5100350660fce8..baf5f0812aaffc19d81aa3abf4f65713b7d6ab00 100644
--- a/ash/display/mirror_window_controller.h
+++ b/ash/display/mirror_window_controller.h
@@ -18,6 +18,7 @@ class Window;
 }
 
 namespace ui {
+class ContextFactory;
 class Reflector;
 }
 
@@ -35,7 +36,7 @@ class MirrorWindowTestApi;
 // is typically drawn by the window system.
 class ASH_EXPORT MirrorWindowController : public aura::WindowTreeHostObserver {
  public:
-  MirrorWindowController();
+  explicit MirrorWindowController(ui::ContextFactory* context_factory);
   virtual ~MirrorWindowController();
 
   // Updates the root window's bounds using |display_info|.
@@ -63,6 +64,8 @@ class ASH_EXPORT MirrorWindowController : public aura::WindowTreeHostObserver {
   // configuration.
   scoped_ptr<RootWindowTransformer> CreateRootWindowTransformer() const;
 
+  ui::ContextFactory* context_factory_;
+
   scoped_ptr<AshWindowTreeHost> ash_host_;
   gfx::Size mirror_window_host_size_;
   scoped_refptr<ui::Reflector> reflector_;