Introduce InspectorIdentifiers<> and use it to assign/lookup LocalFrame and DocumentLoader

Source/core/loader/DocumentLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2011 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.
@@ skipping 14 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/loader/DocumentLoader.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/DocumentParser.h"
+#include "core/dom/WeakIdentifierMap.h"
 #include "core/events/Event.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/fetch/ResourceLoader.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/html/HTMLFrameOwnerElement.h"
@@ skipping 511 matching lines @@
 {
     ASSERT(m_frame);
     RefPtrWillBeRawPtr<LocalFrame> protectFrame(m_frame);
     RefPtr<DocumentLoader> protectLoader(this);
 
     // It never makes sense to have a document loader that is detached from its
     // frame have any loads active, so go ahead and kill all the loads.
     stopLoading();
 
     m_applicationCacheHost->setApplicationCache(0);
-    InspectorInstrumentation::loaderDetachedFromFrame(m_frame, this);
+    WeakIdentifierMap<DocumentLoader>::notifyObjectDestroyed(this);
     m_frame = 0;
 }
 
 void DocumentLoader::clearMainResourceLoader()
 {
     m_loadingMainResource = false;
 }
 
 void DocumentLoader::clearMainResourceHandle()
 {
@@ skipping 206 matching lines @@
 // This is only called by FrameLoader::replaceDocumentWhileExecutingJavaScriptURL()
 void DocumentLoader::replaceDocumentWhileExecutingJavaScriptURL(const DocumentInit& init, const String& source, Document* ownerDocument)
 {
     m_writer = createWriterFor(ownerDocument, init, mimeType(), m_writer ? m_writer->encoding() : emptyAtom, true, ForceSynchronousParsing);
     if (!source.isNull())
         m_writer->appendReplacingData(source);
     endWriting(m_writer.get());
 }
 
 } // namespace blink