Cleanly detach XHR and other pending loader clients from Inspector.

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

 /*
  * 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:
  *
  *     * 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 1007 matching lines @@
       IdentifiersFactory::requestId(it->value), monotonicallyIncreasingTime(),
       eventName.getString(), eventId.getString(), data);
 }
 
 void InspectorNetworkAgent::didFinishEventSourceRequest(
     ThreadableLoaderClient* eventSource) {
   m_knownRequestIdMap.remove(eventSource);
   clearPendingRequestData();
 }
 
+void InspectorNetworkAgent::detachClientRequest(
+    ThreadableLoaderClient* client) {
+  // This method is called by loader clients when finalizing
+  // (i.e., from their "prefinalizers".) The client reference must
+  // no longer be held onto upon completion.
+  if (m_pendingRequest == client) {
+    m_pendingRequest = nullptr;
+    if (m_pendingRequestType == InspectorPageAgent::XHRResource) {
+      m_pendingXHRReplayData.clear();
+    }
+  }
+  m_knownRequestIdMap.remove(client);
+}
+
 void InspectorNetworkAgent::applyUserAgentOverride(String* userAgent) {
   String userAgentOverride;
   m_state->getString(NetworkAgentState::userAgentOverride, &userAgentOverride);
   if (!userAgentOverride.isEmpty())
     *userAgent = userAgentOverride;
 }
 
 void InspectorNetworkAgent::willRecalculateStyle(Document*) {
   DCHECK(!m_isRecalculatingStyle);
   m_isRecalculatingStyle = true;
@@ skipping 496 matching lines @@
           TaskRunnerHelper::get(TaskType::UnspecedLoading,
                                 inspectedFrames->root()),
           this,
           &InspectorNetworkAgent::removeFinishedReplayXHRFired) {}
 
 bool InspectorNetworkAgent::shouldForceCORSPreflight() {
   return m_state->booleanProperty(NetworkAgentState::cacheDisabled, false);
 }
 
 }  // namespace blink