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

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

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 375 matching lines @@
 }
 
 static PassOwnPtr<TracedValue> loadResourceTraceData(unsigned long identifier, const KURL& url, int priority)
 {
     String requestId = IdentifiersFactory::requestId(identifier);
 
     OwnPtr<TracedValue> value = TracedValue::create();
     value->setString("requestId", requestId);
     value->setString("url", url.getString());
     value->setInteger("priority", priority);
-    return value.release();
+    return value;
 }
 
 void FrameFetchContext::willStartLoadingResource(Resource* resource, ResourceRequest& request)
 {
     TRACE_EVENT_ASYNC_BEGIN1("blink.net", "Resource", resource, "data", loadResourceTraceData(resource->identifier(), resource->url(), resource->resourceRequest().priority()));
 
     if (!m_documentLoader)
         return;
     if (resource->getType() == Resource::MainResource)
         m_documentLoader->applicationCacheHost()->willStartLoadingMainResource(request);
@@ skipping 409 matching lines @@
 }
 
 DEFINE_TRACE(FrameFetchContext)
 {
     visitor->trace(m_document);
     visitor->trace(m_documentLoader);
     FetchContext::trace(visitor);
 }
 
 } // namespace blink