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

chrome/browser/ui/ash/window_positioner.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 "chrome/browser/ui/ash/window_positioner.h"
 
 #include "ash/shell.h"
 #include "ash/wm/window_cycle_controller.h"
 #include "ash/wm/window_resizer.h"
 #include "ash/wm/window_util.h"
@@ skipping 29 matching lines @@
     // was not yet initialized.
     last_popup_position_x_ = popup_position_offset_from_screen_corner_x;
     last_popup_position_y_ = popup_position_offset_from_screen_corner_y;
   }
   pop_position_offset_increment_x = grid;
   pop_position_offset_increment_y = grid;
   // We handle the Multi monitor support by retrieving the active window's
   // work area.
   aura::Window* window = ash::wm::GetActiveWindow();
   const gfx::Rect work_area = window && window->IsVisible() ?
-      gfx::Screen::GetDisplayNearestWindow(window).work_area() :
-      gfx::Screen::GetPrimaryDisplay().work_area();
+      Shell::GetAshScreen()->GetDisplayNearestWindow(window).work_area() :
+      Shell::GetAshScreen()->GetPrimaryDisplay().work_area();
   // Only try to reposition the popup when it is not spanning the entire
   // screen.
   if ((old_pos.width() + popup_position_offset_from_screen_corner_x >=
       work_area.width()) ||
       (old_pos.height() + popup_position_offset_from_screen_corner_y >=
        work_area.height()))
     return AlignPopupPosition(old_pos, work_area, grid);
   const gfx::Rect result = SmartPopupPosition(old_pos, work_area, grid);
   if (!result.IsEmpty())
     return AlignPopupPosition(result, work_area, grid);
@@ skipping 116 matching lines @@
   // If the alignment was pushing the window out of the screen, we ignore the
   // alignment for that call.
   if (abs(pos.right() - work_area.right()) < grid)
     x = work_area.right() - w;
   if (abs(pos.bottom() - work_area.bottom()) < grid)
     y = work_area.bottom() - h;
   return gfx::Rect(x, y, w, h);
 }
 
 }  // namespace ash