Fix for rotate from 0deg

Source/platform/transforms/RotateTransformOperation.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 27 matching lines @@
 
 bool RotateTransformOperation::shareSameAxis(const RotateTransformOperation* from, const RotateTransformOperation* to, FloatPoint3D* axis, double* fromAngle, double* toAngle)
 {
     *axis = FloatPoint3D(0, 0, 1);
     *fromAngle = 0;
     *toAngle = 0;
 
     if (!from && !to)
         return true;
 
-    bool fromZero = !from || from->axis().isZero();
-    bool toZero = !to || to->axis().isZero();
+    bool fromZero = !from || from->axis().isZero() || fabs(from->angle()) < angleEpsilon;
+    bool toZero = !to || to->axis().isZero() || fabs(to->angle()) < angleEpsilon;
 
     if (fromZero && toZero)
         return true;
 
     if (fromZero) {
         *axis = to->axis();
         *toAngle = to->angle();
         return true;
     }
 
@@ skipping 90 matching lines @@
     }
     return RotateTransformOperation::create(x, y, z, angle, Rotate3D);
 }
 
 bool RotateTransformOperation::canBlendWith(const TransformOperation& other) const
 {
     return other.isSameType(*this);
 }
 
 } // namespace blink