Implement support for the 'transform-box' property

third_party/WebKit/Source/core/style/ComputedStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 1276 matching lines @@
       requireTransformOrigin(applyOrigin, applyMotionPath);
 
   float originX = 0;
   float originY = 0;
   float originZ = 0;
 
   const FloatSize& boxSize = boundingBox.size();
   if (applyTransformOrigin ||
       // We need to calculate originX and originY for applying motion path.
       applyMotionPath == IncludeMotionPath) {
-    float offsetX = transformOriginX().type() == Percent ? boundingBox.x() : 0;
-    originX =
-        floatValueForLength(transformOriginX(), boxSize.width()) + offsetX;
-    float offsetY = transformOriginY().type() == Percent ? boundingBox.y() : 0;
-    originY =
-        floatValueForLength(transformOriginY(), boxSize.height()) + offsetY;
+    originX = floatValueForLength(transformOriginX(), boxSize.width()) +
+              boundingBox.x();
+    originY = floatValueForLength(transformOriginY(), boxSize.height()) +
+              boundingBox.y();
     if (applyTransformOrigin) {
       originZ = transformOriginZ();
       result.translate3d(originX, originY, originZ);
     }
   }
 
   if (applyIndependentTransformProperties ==
       IncludeIndependentTransformProperties) {
     if (translate())
       translate()->apply(result, boxSize);
@@ skipping 1164 matching lines @@
     if (value < 0)
       fvalue -= 0.5f;
     else
       fvalue += 0.5f;
   }
 
   return roundForImpreciseConversion<int>(fvalue / zoomFactor);
 }
 
 }  // namespace blink