Implement serialization/deserialization of geometry interfaces

third_party/WebKit/Source/core/geometry/DOMMatrix.cpp

Index: third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
diff --git a/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp b/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
index b87df838606e3c2599dc4e4769fcdb35e2ca82b0..ab32f65f2b23e8e33a774c7c40cf5fdb543cdffa 100644
--- a/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
+++ b/third_party/WebKit/Source/core/geometry/DOMMatrix.cpp
@@ -83,10 +83,14 @@ DOMMatrix* DOMMatrix::fromMatrix(DOMMatrixInit& other,
     DCHECK(exception_state.HadException());
     return nullptr;
   }
+  return fromMatrixForSerialization(other);
+}
+
+DOMMatrix* DOMMatrix::fromMatrixForSerialization(DOMMatrixInit& other) {
   if (other.is2D()) {
-    return new DOMMatrix({other.m11(), other.m12(), other.m21(), other.m22(),
-                          other.m41(), other.m42()},
-                         other.is2D());
+    return new DOMMatrix(
+        {other.a(), other.b(), other.c(), other.d(), other.e(), other.f()},
+        other.is2D());
   }
 
   return new DOMMatrix({other.m11(), other.m12(), other.m13(), other.m14(),