Adds enableVirtualTime and setVirtualTimePolicy To Emulation domain.

third_party/WebKit/Source/core/loader/FrameFetchContext.h

 /*
  * Copyright (C) 2013 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 94 matching lines @@
 
     MHTMLArchive* archive() const override;
 
     ResourceLoadPriority modifyPriorityForExperiments(ResourceLoadPriority) override;
 
     void countClientHintsDPR() override;
     void countClientHintsResourceWidth() override;
     void countClientHintsViewportWidth() override;
 
     WebTaskRunner* loadingTaskRunner() const override;
+    WebViewScheduler* webViewScheduler() const override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit FrameFetchContext(DocumentLoader*, Document*);
     inline DocumentLoader* masterDocumentLoader() const;
 
     LocalFrame* frame() const; // Can be null
     void printAccessDeniedMessage(const KURL&) const;
     ResourceRequestBlockedReason canRequestInternal(Resource::Type, const ResourceRequest&, const KURL&, const ResourceLoaderOptions&, bool forPreload, FetchRequest::OriginRestriction, ResourceRequest::RedirectStatus) const;
 
     void prepareRequest(unsigned long identifier, ResourceRequest&, const ResourceResponse&);
 
     // FIXME: Oilpan: Ideally this should just be a traced Member but that will
     // currently leak because ComputedStyle and its data are not on the heap.
     // See crbug.com/383860 for details.
     WeakMember<Document> m_document;
     Member<DocumentLoader> m_documentLoader;
 };
 
 } // namespace blink
 
 #endif