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

Source/platform/transforms/TranslateTransformOperation.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 22 matching lines @@
     if (blendToIdentity)
         return TranslateTransformOperation::create(zeroLength.blend(m_x, progress, ValueRangeAll), zeroLength.blend(m_y, progress, ValueRangeAll), WebCore::blend(0., m_z, progress), m_type);
 
     const TranslateTransformOperation* fromOp = static_cast<const TranslateTransformOperation*>(from);
     Length fromX = fromOp ? fromOp->m_x : zeroLength;
     Length fromY = fromOp ? fromOp->m_y : zeroLength;
     double fromZ = fromOp ? fromOp->m_z : 0;
     return TranslateTransformOperation::create(m_x.blend(fromX, progress, ValueRangeAll), m_y.blend(fromY, progress, ValueRangeAll), WebCore::blend(fromZ, m_z, progress), m_type);
 }
 
+bool TranslateTransformOperation::canBlendWith(const TransformOperation& other) const
+{
+    return other.type() == Translate
+        || other.type() == TranslateX
+        || other.type() == TranslateY
+        || other.type() == TranslateZ
+        || other.type() == Translate3D;
+}
+
 } // namespace WebCore