ASH: Use virtual screen coordinates in Display::bounds()

ui/aura/display_manager.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_AURA_DISPLAY_MANAGER_H_
 #define UI_AURA_DISPLAY_MANAGER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 50 matching lines @@
   // configurations is passed as a vector of Display object, which
   // contains each display's new infomration.
   virtual void OnNativeDisplaysChanged(
       const std::vector<gfx::Display>& display) = 0;
 
   // Create a root window for given |display|.
   virtual RootWindow* CreateRootWindowForDisplay(
       const gfx::Display& display) = 0;
 
   // Returns the display at |index|. The display at 0 is considered "primary".
-  virtual const gfx::Display& GetDisplayAt(size_t index) = 0;
+  virtual gfx::Display* GetDisplayAt(size_t index) = 0;
 
   virtual size_t GetNumDisplays() const = 0;
 
   // Returns the display object nearest given |window|.
   virtual const gfx::Display& GetDisplayNearestWindow(
       const Window* window) const = 0;
 
   // Returns the display object nearest given |pint|.
   virtual const gfx::Display& GetDisplayNearestPoint(
       const gfx::Point& point) const = 0;
@@ skipping 10 matching lines @@
   // switches::kAuraHostWindowSize flag.
   static bool use_fullscreen_host_window_;
 
   ObserverList<DisplayObserver> observers_;
   DISALLOW_COPY_AND_ASSIGN(DisplayManager);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_DISPLAY_MANAGER_H_