Add context to gfx::Screen calls in support of simultaneous desktop+ash

ash/wm/workspace/multi_window_resize_controller.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/wm/workspace/multi_window_resize_controller.h"
 
 #include "ash/screen_ash.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_animations.h"
@@ skipping 412 matching lines @@
   else
     bounds.set_x(show_bounds_in_screen_.x());
   resize_widget_->SetBounds(bounds);
 }
 
 void MultiWindowResizeController::CompleteResize(int event_flags) {
   window_resizer_->CompleteDrag(event_flags);
   window_resizer_.reset();
 
   // Mouse may still be over resizer, if not hide.
-  gfx::Point screen_loc = gfx::Screen::GetCursorScreenPoint();
+  gfx::Point screen_loc = Shell::GetScreen()->GetCursorScreenPoint();
   if (!resize_widget_->GetWindowBoundsInScreen().Contains(screen_loc)) {
     Hide();
   } else {
     // If the mouse is over the resizer we need to remove observers on any of
     // the |other_windows|. If we start another resize we'll recalculate the
     // |other_windows| and invoke AddObserver() as necessary.
     for (size_t i = 0; i < windows_.other_windows.size(); ++i)
       windows_.other_windows[i]->RemoveObserver(this);
     windows_.other_windows.clear();
   }
@@ skipping 59 matching lines @@
 
   gfx::Point window_loc(location_in_screen);
   aura::Window::ConvertPointToTarget(
       window->GetRootWindow(), window, &window_loc);
   return window->HitTest(window_loc) &&
       window->delegate()->GetNonClientComponent(window_loc) == component;
 }
 
 }  // namespace internal
 }  // namespace ash