Add support for unprefixed CSS Transforms

Source/core/rendering/compositing/CompositingReasonFinder.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 "config.h"
 #include "core/rendering/compositing/CompositingReasonFinder.h"
 
 #include "CSSPropertyNames.h"
 #include "HTMLNames.h"
 #include "core/animation/ActiveAnimations.h"
@@ skipping 222 matching lines @@
     if (!(m_compositingTriggers & ChromeClient::AnimationTrigger))
         return false;
 
     if (Settings* settings = m_renderView.document().settings()) {
         if (!settings->acceleratedCompositingForTransitionEnabled())
             return false;
     }
 
     return renderer->style()->transitionForProperty(CSSPropertyOpacity)
         || renderer->style()->transitionForProperty(CSSPropertyWebkitFilter)
+        || renderer->style()->transitionForProperty(CSSPropertyTransform)
         || renderer->style()->transitionForProperty(CSSPropertyWebkitTransform);
 }
 
 bool CompositingReasonFinder::requiresCompositingForFilters(RenderObject* renderer) const
 {
     if (!(m_compositingTriggers & ChromeClient::FilterTrigger))
         return false;
 
     return renderer->hasFilter();
 }
@@ skipping 139 matching lines @@
 
     return true;
 }
 
 bool CompositingReasonFinder::requiresCompositingForOverflowScrolling(const RenderLayer* layer) const
 {
     return layer->needsCompositedScrolling();
 }
 
 }