Removes aura dependencies from WindowPositioner

chrome/browser/ui/window_sizer/window_sizer_ash.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/window_sizer/window_sizer.h"
 
 #include "ash/shell.h"
 #include "ash/wm/window_positioner.h"
 #include "ash/wm/window_state.h"
 #include "chrome/browser/ui/ash/ash_util.h"
@@ skipping 91 matching lines @@
     bounds_in_screen->AdjustToFit(display.work_area());
     return;
   }
 
   // The |browser_window| is non NULL when this is called after
   // browser's aura window is created.
   aura::Window* browser_window =
       browser_->window() ? browser_->window()->GetNativeWindow() : NULL;
 
   ash::WindowPositioner::GetBoundsAndShowStateForNewWindow(
-      screen_,
-      browser_window,
-      is_saved_bounds,
-      passed_show_state,
-      bounds_in_screen,
-      show_state);
+      ash::wm::WmWindowAura::Get(browser_window), is_saved_bounds,
+      passed_show_state, bounds_in_screen, show_state);
 }