blink::TransformationMatrix implement create methods

third_party/WebKit/Source/platform/geometry/TransformState.cpp

 /*
  * Copyright (C) 2011 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 26 matching lines @@
     if (m_mapPoint)
         m_lastPlanarPoint = other.m_lastPlanarPoint;
     if (m_mapQuad)
         m_lastPlanarQuad = other.m_lastPlanarQuad;
     m_accumulatingTransform = other.m_accumulatingTransform;
     m_direction = other.m_direction;
 
     m_accumulatedTransform.clear();
 
     if (other.m_accumulatedTransform)
-        m_accumulatedTransform = adoptPtr(new TransformationMatrix(*other.m_accumulatedTransform));
+        m_accumulatedTransform = TransformationMatrix::create(*other.m_accumulatedTransform);
 
     return *this;
 }
 
 void TransformState::translateTransform(const LayoutSize& offset)
 {
     if (m_direction == ApplyTransformDirection)
         m_accumulatedTransform->translateRight(offset.width().toDouble(), offset.height().toDouble());
     else
         m_accumulatedTransform->translate(offset.width().toDouble(), offset.height().toDouble());
@@ skipping 53 matching lines @@
     if (transformFromContainer.isIntegerTranslation()) {
         move(LayoutSize(transformFromContainer.e(), transformFromContainer.f()), accumulate);
         return;
     }
 
     applyAccumulatedOffset();
 
     // If we have an accumulated transform from last time, multiply in this transform
     if (m_accumulatedTransform) {
         if (m_direction == ApplyTransformDirection)
-            m_accumulatedTransform = adoptPtr(new TransformationMatrix(transformFromContainer * *m_accumulatedTransform));
+            m_accumulatedTransform = TransformationMatrix::create(transformFromContainer * *m_accumulatedTransform);
         else
             m_accumulatedTransform->multiply(transformFromContainer);
     } else if (accumulate == AccumulateTransform) {
         // Make one if we started to accumulate
-        m_accumulatedTransform = adoptPtr(new TransformationMatrix(transformFromContainer));
+        m_accumulatedTransform = TransformationMatrix::create(transformFromContainer);
     }
 
     if (accumulate == FlattenTransform) {
         const TransformationMatrix* finalTransform = m_accumulatedTransform ? m_accumulatedTransform.get() : &transformFromContainer;
         flattenWithTransform(*finalTransform, wasClamped);
     }
     m_accumulatingTransform = accumulate == AccumulateTransform;
 }
 
 void TransformState::flatten(bool* wasClamped)
@@ skipping 60 matching lines @@
 
     // We could throw away m_accumulatedTransform if we wanted to here, but that
     // would cause thrash when traversing hierarchies with alternating
     // preserve-3d and flat elements.
     if (m_accumulatedTransform)
         m_accumulatedTransform->makeIdentity();
     m_accumulatingTransform = false;
 }
 
 } // namespace blink