PlzNavigate: Fix for the http/tests/inspector/resource-har-conversion.html layout test failure.

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 1491 matching lines @@
   for (auto& resource : m_resourcesData->resources()) {
     if (resource->requestedURL() == url) {
       *content = resource->content();
       *base64Encoded = resource->base64Encoded();
       return true;
     }
   }
   return false;
 }
 
+bool InspectorNetworkAgent::cacheDisabled() {
+  return m_state->booleanProperty(NetworkAgentState::cacheDisabled, false);
+}
+
 void InspectorNetworkAgent::removeFinishedReplayXHRFired(TimerBase*) {
   m_replayXHRsToBeDeleted.clear();
 }
 
 InspectorNetworkAgent::InspectorNetworkAgent(InspectedFrames* inspectedFrames)
     : m_inspectedFrames(inspectedFrames),
       m_resourcesData(NetworkResourcesData::create(maximumTotalBufferSize,
                                                    maximumResourceBufferSize)),
       m_pendingRequest(nullptr),
       m_isRecalculatingStyle(false),
       m_removeFinishedReplayXHRTimer(
           this,
           &InspectorNetworkAgent::removeFinishedReplayXHRFired) {}
 
 bool InspectorNetworkAgent::shouldForceCORSPreflight() {
   return m_state->booleanProperty(NetworkAgentState::cacheDisabled, false);
 }
 
 }  // namespace blink