[compositorworker] compositor proxy mutation updates underlying layers

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

 // 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.
 
 #include "core/dom/DOMMatrix.h"
 
 namespace blink {
 
 DOMMatrix* DOMMatrix::create()
 {
     return new DOMMatrix(TransformationMatrix());
 }
 
 DOMMatrix* DOMMatrix::create(DOMMatrixReadOnly* other)
 {
     return new DOMMatrix(other->matrix(), other->is2D());
 }
 
+DOMMatrix* DOMMatrix::create(const SkMatrix44& matrix)
+{
+    TransformationMatrix transformationMatrix(matrix);
+    return new DOMMatrix(transformationMatrix, transformationMatrix.isAffine());
+}
+
 DOMMatrix::DOMMatrix(const TransformationMatrix& matrix, bool is2D)
 {
     m_matrix = TransformationMatrix::create(matrix);
     m_is2D = is2D;
 }
 
 void DOMMatrix::setIs2D(bool value)
 {
     if (m_is2D)
         m_is2D = value;
@@ skipping 65 matching lines @@
     else
         m_matrix->scale3d(sx, sy, sz);
 
     if (hasTranslation)
         translateSelf(-ox, -oy, -oz);
 
     return this;
 }
 
 } // namespace blink