Adding Blink-side 3d Box and Bounds calculations to TransformOperations

Source/platform/transforms/ScaleTransformOperation.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 27 matching lines @@
 
     const ScaleTransformOperation* fromOp = static_cast<const ScaleTransformOperation*>(from);
     double fromX = fromOp ? fromOp->m_x : 1.0;
     double fromY = fromOp ? fromOp->m_y : 1.0;
     double fromZ = fromOp ? fromOp->m_z : 1.0;
     return ScaleTransformOperation::create(WebCore::blend(fromX, m_x, progress),
                                            WebCore::blend(fromY, m_y, progress),
                                            WebCore::blend(fromZ, m_z, progress), m_type);
 }
 
+
+bool ScaleTransformOperation::canBlendWith(const TransformOperation& other) const
+{
+    return other.type() == ScaleX
+        || other.type() == ScaleY
+        || other.type() == ScaleZ
+        || other.type() == Scale3D
+        || other.type() == Scale;
+}
+
 } // namespace WebCore