DevTools: Make network events continuous on Timeline

third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
     Copyright (C) 2009 Torch Mobile Inc. http://www.torchmobile.com/
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
@@ skipping 308 matching lines @@
     resource->setIdentifier(createUniqueIdentifier());
     resource->setCacheIdentifier(cacheIdentifier);
     resource->finish();
     memoryCache()->add(resource.get());
     scheduleDocumentResourcesGC();
 }
 
 ResourcePtr<Resource> ResourceFetcher::requestResource(FetchRequest& request, const ResourceFactory& factory, const SubstituteData& substituteData)
 {
     ASSERT(request.options().synchronousPolicy == RequestAsynchronously || factory.type() == Resource::Raw || factory.type() == Resource::XSLStyleSheet);
+    TRACE_EVENT0("devtools.timeline", "ResourceFetcher::requestResource");
 
     context().upgradeInsecureRequest(request);
     context().addClientHintsIfNecessary(request);
     context().addCSPHeaderIfNecessary(factory.type(), request);
 
     bool isStaticData = request.resourceRequest().url().protocolIsData() || substituteData.isValid();
     if (isStaticData)
         preCacheData(request, factory, substituteData);
 
     KURL url = request.resourceRequest().url();
@@ skipping 820 matching lines @@
     visitor->trace(m_archiveResourceCollection);
     visitor->trace(m_loaders);
     visitor->trace(m_nonBlockingLoaders);
 #if ENABLE(OILPAN)
     visitor->trace(m_preloads);
     visitor->trace(m_resourceTimingInfoMap);
 #endif
 }
 
 }