Consider "mixed content XHR" as mixed script instead of mixed display.

Source/core/fetch/ResourceFetcher.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@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
     version 2 of the License, or (at your option) any later version.
@@ skipping 13 matching lines @@
 */
 
 #ifndef ResourceFetcher_h
 #define ResourceFetcher_h
 
 #include "core/fetch/CachePolicy.h"
 #include "core/fetch/FetchInitiatorInfo.h"
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/Resource.h"
 #include "core/fetch/ResourceLoaderHost.h"
+#include "core/fetch/ResourceLoaderOptions.h"
 #include "core/fetch/ResourcePtr.h"
 #include "core/platform/Timer.h"
 #include "wtf/Deque.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #include "wtf/ListHashSet.h"
 #include "wtf/text/StringHash.h"
 
 namespace WebCore {
 
@@ skipping 78 matching lines @@
     int requestCount() const { return m_requestCount; }
 
     bool isPreloaded(const String& urlString) const;
     void clearPreloads();
     void clearPendingPreloads();
     void preload(Resource::Type, FetchRequest&, const String& charset);
     void checkForPendingPreloads();
     void printPreloadStats();
     bool canRequest(Resource::Type, const KURL&, const ResourceLoaderOptions&, bool forPreload = false);
     bool canAccess(Resource*);
+    bool checkInsecureContent(Resource::Type, const KURL&, MixedContentBlockingTreatment) const;
 
     // ResourceLoaderHost
     virtual void incrementRequestCount(const Resource*) OVERRIDE;
     virtual void decrementRequestCount(const Resource*) OVERRIDE;
     virtual void didLoadResource(Resource*) OVERRIDE;
     virtual void redirectReceived(Resource*, const ResourceResponse&) OVERRIDE;
     virtual void didFinishLoading(const Resource*, double finishTime, const ResourceLoaderOptions&) OVERRIDE;
     virtual void didChangeLoadingPriority(const Resource*, ResourceLoadPriority) OVERRIDE;
     virtual void didFailLoading(const Resource*, const ResourceError&, const ResourceLoaderOptions&) OVERRIDE;
     virtual void willSendRequest(const Resource*, ResourceRequest&, const ResourceResponse& redirectResponse, const ResourceLoaderOptions&) OVERRIDE;
@@ skipping 25 matching lines @@
     void requestPreload(Resource::Type, FetchRequest&, const String& charset);
 
     enum RevalidationPolicy { Use, Revalidate, Reload, Load };
     RevalidationPolicy determineRevalidationPolicy(Resource::Type, ResourceRequest&, bool forPreload, Resource* existingResource, FetchRequest::DeferOption) const;
 
     void determineTargetType(ResourceRequest&, Resource::Type);
     ResourceRequestCachePolicy resourceRequestCachePolicy(const ResourceRequest&, Resource::Type);
     void addAdditionalRequestHeaders(ResourceRequest&, Resource::Type);
 
     void notifyLoadedFromMemoryCache(Resource*);
-    bool checkInsecureContent(Resource::Type, const KURL&) const;
 
     void garbageCollectDocumentResourcesTimerFired(Timer<ResourceFetcher>*);
     void performPostLoadActions();
 
     bool clientDefersImage(const KURL&) const;
     void reloadImagesIfNotDeferred();
 
     HashSet<String> m_validatedURLs;
     mutable DocumentResourceMap m_documentResources;
     Document* m_document;
@@ skipping 39 matching lines @@
             m_loader->m_allowStaleResources = m_previousState;
     }
 private:
     ResourceFetcher* m_loader;
     bool m_previousState;
 };
 
 } // namespace WebCore
 
 #endif