Fix calls to element.animate() with positive delays not being composited

third_party/WebKit/Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc.
  * All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
@@ skipping 1217 matching lines @@
   ASSERT(animatingElement == element || !animatingElement ||
          animatingElement->parentOrShadowHostElement() == element);
 
   if (!(animatingElement && animatingElement->hasAnimations()) &&
       !state.style()->transitions() && !state.style()->animations())
     return false;
 
   CSSAnimations::calculateUpdate(animatingElement, *element, *state.style(),
                                  state.parentStyle(), state.animationUpdate(),
                                  this);
-  if (state.animationUpdate().isEmpty())
-    return false;
 
   CSSAnimations::snapshotCompositorKeyframes(
       *element, state.animationUpdate(), *state.style(), state.parentStyle());
 
+  if (state.animationUpdate().isEmpty())
+    return false;
+
   if (state.style()->insideLink() != NotInsideLink) {
     ASSERT(state.applyPropertyToRegularStyle());
     state.setApplyPropertyToVisitedLinkStyle(true);
   }
 
   const ActiveInterpolationsMap& activeInterpolationsMapForAnimations =
       state.animationUpdate().activeInterpolationsForAnimations();
   const ActiveInterpolationsMap& activeInterpolationsMapForTransitions =
       state.animationUpdate().activeInterpolationsForTransitions();
   // TODO(crbug.com/644148): Apply animations on custom properties.
@@ skipping 695 matching lines @@
   visitor->trace(m_siblingRuleSet);
   visitor->trace(m_uncommonAttributeRuleSet);
   visitor->trace(m_watchedSelectorsRules);
   visitor->trace(m_treeBoundaryCrossingScopes);
   visitor->trace(m_styleSharingLists);
   visitor->trace(m_pendingStyleSheets);
   visitor->trace(m_document);
 }
 
 }  // namespace blink