Removes most aura dependencies from WindowResizer

ash/wm/default_window_resizer.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/default_window_resizer.h"
 
-#include "ash/shell.h"
+#include "ash/wm/common/wm_globals.h"
+#include "ash/wm/common/wm_window.h"
 #include "ash/wm/window_state.h"
-#include "ui/aura/client/aura_constants.h"
-#include "ui/aura/env.h"
-#include "ui/aura/window.h"
-#include "ui/aura/window_delegate.h"
-#include "ui/base/hit_test.h"
-#include "ui/base/ui_base_types.h"
-#include "ui/gfx/screen.h"
 
 namespace ash {
 
 DefaultWindowResizer::~DefaultWindowResizer() {
-  ash::Shell::GetInstance()->cursor_manager()->UnlockCursor();
+  globals_->UnlockCursor();
 }
 
 // static
 DefaultWindowResizer*
 DefaultWindowResizer::Create(wm::WindowState* window_state) {
   return new DefaultWindowResizer(window_state);
 }
 
 void DefaultWindowResizer::Drag(const gfx::Point& location, int event_flags) {
   gfx::Rect bounds(CalculateBoundsForDrag(location));
-  if (bounds != GetTarget()->bounds()) {
+  if (bounds != GetTarget()->GetBounds()) {
     if (!did_move_or_resize_ && !details().restore_bounds.IsEmpty())
       window_state_->ClearRestoreBounds();
     did_move_or_resize_ = true;
     GetTarget()->SetBounds(bounds);
   }
 }
 
 void DefaultWindowResizer::CompleteDrag() {
 }
 
 void DefaultWindowResizer::RevertDrag() {
   if (!did_move_or_resize_)
     return;
 
   GetTarget()->SetBounds(details().initial_bounds_in_parent);
 
   if (!details().restore_bounds.IsEmpty())
     window_state_->SetRestoreBoundsInScreen(details().restore_bounds);
 }
 
 DefaultWindowResizer::DefaultWindowResizer(wm::WindowState* window_state)
     : WindowResizer(window_state),
-      did_move_or_resize_(false) {
+      did_move_or_resize_(false),
+      globals_(GetTarget()->GetGlobals()) {
   DCHECK(details().is_resizable);
-  ash::Shell::GetInstance()->cursor_manager()->LockCursor();
+  globals_->LockCursor();
 }
 
 }  // namespace aura