Thread ui transform animations

ui/views/view.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.
 
 #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first.
 
 #include "ui/views/view.h"
 
 #include <algorithm>
 #include <cmath>
@@ skipping 420 matching lines @@
     OnEnabledChanged();
   }
 }
 
 void View::OnEnabledChanged() {
   SchedulePaint();
 }
 
 // Transformations -------------------------------------------------------------
 
-const gfx::Transform& View::GetTransform() const {
-  static const gfx::Transform* no_op = new gfx::Transform;
-  return layer() ? layer()->transform() : *no_op;
+gfx::Transform View::GetTransform() const {
+  return layer() ? layer()->transform() : gfx::Transform();
 }
 
 void View::SetTransform(const gfx::Transform& transform) {
   if (transform.IsIdentity()) {
     if (layer()) {
       layer()->SetTransform(transform);
       if (!paint_to_layer_)
         DestroyLayer();
     } else {
       // Nothing.
@@ skipping 1708 matching lines @@
   ConvertPointToWidget(this, &widget_location);
   GetWidget()->RunShellDrag(this, data, widget_location, drag_operations,
       source);
   return true;
 #else
   return false;
 #endif  // !defined(OS_MACOSX)
 }
 
 }  // namespace views