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

ash/display/multi_display_manager.cc

 // 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.
 
 #include "ash/display/multi_display_manager.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 106 matching lines @@
     const gfx::Display& display) {
   RootWindow* root_window = new RootWindow(display.bounds_in_pixel());
   // No need to remove RootWindowObserver because
   // the DisplayManager object outlives RootWindow objects.
   root_window->AddRootWindowObserver(this);
   root_window->SetProperty(kDisplayIdKey, display.id());
   root_window->Init();
   return root_window;
 }
 
-const gfx::Display& MultiDisplayManager::GetDisplayAt(size_t index) {
-  return index < displays_.size() ? displays_[index] : GetInvalidDisplay();
+gfx::Display* MultiDisplayManager::GetDisplayAt(size_t index) {
+  return index < displays_.size() ? &displays_[index] : NULL;
 }
 
 size_t MultiDisplayManager::GetNumDisplays() const {
   return displays_.size();
 }
 
 const gfx::Display& MultiDisplayManager::GetDisplayNearestWindow(
     const Window* window) const {
   if (!window) {
     MultiDisplayManager* manager = const_cast<MultiDisplayManager*>(this);
-    return manager->GetDisplayAt(0);
+    return *manager->GetDisplayAt(0);
   }
   const RootWindow* root = window->GetRootWindow();
   MultiDisplayManager* manager = const_cast<MultiDisplayManager*>(this);
   return root ? manager->FindDisplayForRootWindow(root) : GetInvalidDisplay();
 }
 
 const gfx::Display& MultiDisplayManager::GetDisplayNearestPoint(
     const gfx::Point& point) const {
   // TODO(oshima): For m19, mouse is constrained within
   // the primary window.
   MultiDisplayManager* manager = const_cast<MultiDisplayManager*>(this);
-  return manager->GetDisplayAt(0);
+  return *manager->GetDisplayAt(0);
 }
 
 void MultiDisplayManager::OnRootWindowResized(const aura::RootWindow* root,
                                               const gfx::Size& old_size) {
   if (!use_fullscreen_host_window()) {
     gfx::Display& display = FindDisplayForRootWindow(root);
     display.SetSize(root->GetHostSize());
     NotifyBoundsChanged(display);
   }
 }
@@ skipping 76 matching lines @@
        iter != displays_.end(); ++iter) {
     if ((*iter).id() == id)
       return *iter;
   }
   DLOG(FATAL) << "Could not find display by id:" << id;
   return GetInvalidDisplay();
 }
 
 }  // namespace internal
 }  // namespace ash