[GeometryInterface] add toJson() function in DOMMatrixReadOnly.

third_party/WebKit/Source/core/dom/DOMMatrixReadOnly.h

 // Copyright 2014 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.
 
 #ifndef DOMMatrixReadOnly_h
 #define DOMMatrixReadOnly_h
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/DOMTypedArray.h"
@@ skipping 67 matching lines @@
   DOMMatrix* skewY(double sy);
   DOMMatrix* flipX();
   DOMMatrix* flipY();
   DOMMatrix* inverse();
 
   DOMFloat32Array* toFloat32Array() const;
   DOMFloat64Array* toFloat64Array() const;
 
   const String toString() const;
 
+  ScriptValue toJSONForBinding(ScriptState*) const;
+
   const TransformationMatrix& matrix() const { return *m_matrix; }
 
   DEFINE_INLINE_TRACE() {}
 
  protected:
   DOMMatrixReadOnly() {}
 
   template <typename T>
   DOMMatrixReadOnly(T sequence, int size) {
     if (size == 6) {
@@ skipping 18 matching lines @@
   // supports 16-byte alignment but Oilpan doesn't. So we use an std::unique_ptr
   // to allocate TransformationMatrix on PartitionAlloc.
   // TODO(oilpan): Oilpan should support 16-byte aligned allocations.
   std::unique_ptr<TransformationMatrix> m_matrix;
   bool m_is2D;
 };
 
 }  // namespace blink
 
 #endif