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

Source/platform/transforms/ScaleTransformOperation.h

Index: Source/platform/transforms/ScaleTransformOperation.h
diff --git a/Source/platform/transforms/ScaleTransformOperation.h b/Source/platform/transforms/ScaleTransformOperation.h
index b2fd67b3b6aaa129d46588c8afea83040e7fa1e0..fa21c8fe99efdc0af68e73659739630fc66f142f 100644
--- a/Source/platform/transforms/ScaleTransformOperation.h
+++ b/Source/platform/transforms/ScaleTransformOperation.h
@@ -45,6 +45,8 @@ public:
     double y() const { return m_y; }
     double z() const { return m_z; }
 
+    virtual bool canBlendWith(const TransformOperation& other) const;
+
 private:
     virtual bool isIdentity() const OVERRIDE { return m_x == 1 &&  m_y == 1 &&  m_z == 1; }