Remove OwnPtr::release() calls in core/ (part 4).

third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013, Intel Corporation
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 604 matching lines @@
 
     OwnPtr<CrossOriginPreflightResultCacheItem> preflightResult = adoptPtr(new CrossOriginPreflightResultCacheItem(effectiveAllowCredentials()));
     if (!preflightResult->parse(response, accessControlErrorDescription)
         || !preflightResult->allowsCrossOriginMethod(m_actualRequest.httpMethod(), accessControlErrorDescription)
         || !preflightResult->allowsCrossOriginHeaders(m_actualRequest.httpHeaderFields(), accessControlErrorDescription)) {
         handlePreflightFailure(response.url().getString(), accessControlErrorDescription);
         // |this| may be dead here in async mode.
         return;
     }
 
-    CrossOriginPreflightResultCache::shared().appendEntry(getSecurityOrigin()->toString(), m_actualRequest.url(), preflightResult.release());
+    CrossOriginPreflightResultCache::shared().appendEntry(getSecurityOrigin()->toString(), m_actualRequest.url(), std::move(preflightResult));
 }
 
 void DocumentThreadableLoader::reportResponseReceived(unsigned long identifier, const ResourceResponse& response)
 {
     LocalFrame* frame = document().frame();
     // We are seeing crashes caused by nullptr (crbug.com/578849). But the frame
     // must be set here. TODO(horo): Find the root cause of the unset frame.
     ASSERT(frame);
     if (!frame)
         return;
@@ skipping 338 matching lines @@
     return m_securityOrigin ? m_securityOrigin.get() : document().getSecurityOrigin();
 }
 
 Document& DocumentThreadableLoader::document() const
 {
     ASSERT(m_document);
     return *m_document;
 }
 
 } // namespace blink