Revert "DevTools: Load document (html) content from disk cache in page agent enabling."

Source/core/inspector/InspectorResourceContentLoader.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef InspectorResourceContentLoader_h
-#define InspectorResourceContentLoader_h
-
-#include "core/fetch/RawResource.h"
-#include "core/fetch/StyleSheetResourceClient.h"
-#include "wtf/HashMap.h"
-#include "wtf/Noncopyable.h"
-#include "wtf/Vector.h"
-
-namespace WebCore {
-
-class Page;
-class RawResourceClient;
-class StyleSheetResourceClient;
-class VoidCallback;
-
-class InspectorResourceContentLoader FINAL : private RawResourceClient, private StyleSheetResourceClient {
-    WTF_MAKE_NONCOPYABLE(InspectorResourceContentLoader);
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    InspectorResourceContentLoader(Page*);
-    void addListener(PassOwnPtr<VoidCallback>);
-    virtual ~InspectorResourceContentLoader();
-    bool hasFinished();
-    void stop();
-
-private:
-    virtual void notifyFinished(Resource*) OVERRIDE;
-    virtual void setCSSStyleSheet(const String& /* href */, const KURL& /* baseURL */, const String& /* charset */, const CSSStyleSheetResource*);
-    void resourceFinished(Resource*);
-    void checkDone();
-    void removeAsClientFromResource(Resource*);
-
-    Vector<OwnPtr<VoidCallback> > m_callbacks;
-    bool m_allRequestsStarted;
-    HashSet<Resource*> m_pendingResources;
-    Vector<ResourcePtr<Resource> > m_resources;
-};
-
-} // namespace WebCore
-
-
-#endif // !defined(InspectorResourceContentLoader_h)