add ash_resources.grd and necessary changes to use images in ash/resources

ash/display/multi_display_manager.h

Index: ash/display/multi_display_manager.h
diff --git a/ash/display/multi_display_manager.h b/ash/display/multi_display_manager.h
index 248885db4d785427090517b6197a124cf842c5f5..e2c21b8db7641ced8fb9469ae205897e807597f4 100644
--- a/ash/display/multi_display_manager.h
+++ b/ash/display/multi_display_manager.h
@@ -49,6 +49,8 @@ class ASH_EXPORT MultiDisplayManager : public aura::DisplayManager,
   // in the cache, if any.
   void InitInternalDisplayInfo();
 
+  void SetOutputNameForPrimaryDisplay(const std::sdtring& name);
+
   // True if there is an internal display.
   bool HasInternalDisplay() const;
 
@@ -102,6 +104,8 @@ class ASH_EXPORT MultiDisplayManager : public aura::DisplayManager,
   // display.
   int64 EnableInternalDisplayForTest();
 
+  void MovePrimaryToTop();
+
   Displays displays_;
 
   int64 internal_display_id_;
@@ -109,6 +113,10 @@ class ASH_EXPORT MultiDisplayManager : public aura::DisplayManager,
   // An internal display cache used when the internal display is disconnectd.
   scoped_ptr<gfx::Display> internal_display_;
 
+  std::vector<std::string> output_names_;
+
+  std::string primary_output_name_;
+
   DISALLOW_COPY_AND_ASSIGN(MultiDisplayManager);
 };