Animations: Fix blend to identity for transform: translate Z

third_party/WebKit/Source/platform/transforms/TranslateTransformOperation.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 13 matching lines @@
 namespace blink {
 
 PassRefPtr<TransformOperation> TranslateTransformOperation::blend(
     const TransformOperation* from,
     double progress,
     bool blendToIdentity) {
   if (from && !from->canBlendWith(*this))
     return this;
 
   const Length zeroLength(0, Fixed);
-  if (blendToIdentity)
+  if (blendToIdentity) {
     return TranslateTransformOperation::create(
         zeroLength.blend(m_x, progress, ValueRangeAll),
         zeroLength.blend(m_y, progress, ValueRangeAll),
-        blink::blend(0., m_z, progress), m_type);
+        blink::blend(m_z, 0., progress), m_type);
+  }
 
   const TranslateTransformOperation* fromOp =
       static_cast<const TranslateTransformOperation*>(from);
   Length fromX = fromOp ? fromOp->m_x : zeroLength;
   Length fromY = fromOp ? fromOp->m_y : zeroLength;
   double fromZ = fromOp ? fromOp->m_z : 0;
   return TranslateTransformOperation::create(
       m_x.blend(fromX, progress, ValueRangeAll),
       m_y.blend(fromY, progress, ValueRangeAll),
       blink::blend(fromZ, m_z, progress), m_type);
 }
 
 bool TranslateTransformOperation::canBlendWith(
     const TransformOperation& other) const {
   return other.type() == Translate || other.type() == TranslateX ||
          other.type() == TranslateY || other.type() == TranslateZ ||
          other.type() == Translate3D;
 }
 
 PassRefPtr<TranslateTransformOperation>
 TranslateTransformOperation::zoomTranslate(double factor) {
   return create(m_x.zoom(factor), m_y.zoom(factor), m_z * factor, m_type);
 }
 
 }  // namespace blink