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

ash/display/multi_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 ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_
 #define ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 31 matching lines @@
   static void ToggleDisplayScale();
 
   bool UpdateWorkAreaOfDisplayNearestWindow(const aura::Window* window,
                                             const gfx::Insets& insets);
 
   // DisplayManager overrides:
   virtual void OnNativeDisplaysChanged(
       const std::vector<gfx::Display>& displays) OVERRIDE;
   virtual aura::RootWindow* CreateRootWindowForDisplay(
       const gfx::Display& display) OVERRIDE;
-  virtual const gfx::Display& GetDisplayAt(size_t index) OVERRIDE;
+  virtual gfx::Display* GetDisplayAt(size_t index) OVERRIDE;
 
   virtual size_t GetNumDisplays() const OVERRIDE;
   virtual const gfx::Display& GetDisplayNearestPoint(
       const gfx::Point& point) const OVERRIDE;
   virtual const gfx::Display& GetDisplayNearestWindow(
       const aura::Window* window) const OVERRIDE;
 
   // RootWindowObserver overrides:
   virtual void OnRootWindowResized(const aura::RootWindow* root,
                                    const gfx::Size& new_size) OVERRIDE;
@@ skipping 12 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(MultiDisplayManager);
 };
 
 extern const aura::WindowProperty<int>* const kDisplayIdKey;
 
 }  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_MULTI_DISPLAY_MANAGER_H_