Oilpan: fix build after r368275.

third_party/WebKit/Source/core/inspector/InspectorCSSAgent.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 956 matching lines @@
     for (size_t i = 0; animationData && i < animationData->nameList().size(); ++i) {
         AtomicString animationName(animationData->nameList()[i]);
         if (animationName == CSSAnimationData::initialName())
             continue;
         StyleRuleKeyframes* keyframesRule = styleResolver.findKeyframesRule(element, animationName);
         if (!keyframesRule)
             continue;
 
         // Find CSSOM wrapper.
         CSSKeyframesRule* cssKeyframesRule = nullptr;
-        for (auto& styleSheet : *m_documentToCSSStyleSheets.get(ownerDocument)) {
+        for (CSSStyleSheet* styleSheet : *m_documentToCSSStyleSheets.get(ownerDocument)) {
             ASSERT(styleSheet->ownerNode());
             RuleSet& ruleSet = styleSheet->contents()->ruleSet();
             for (auto& rule : ruleSet.keyframesRules()) {
                 if (rule->name().impl() == animationName)
                     cssKeyframesRule = findKeyframesRule(styleSheet, keyframesRule);
             }
         }
         if (!cssKeyframesRule)
             continue;
 
@@ skipping 1058 matching lines @@
     visitor->trace(m_documentToCSSStyleSheets);
     visitor->trace(m_invalidatedDocuments);
     visitor->trace(m_nodeToInspectorStyleSheet);
     visitor->trace(m_documentToViaInspectorStyleSheet);
 #endif
     visitor->trace(m_inspectorUserAgentStyleSheet);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink