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

Source/core/inspector/InspectorResourceContentLoader.cpp

-// 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.
-
-#include "config.h"
-#include "core/inspector/InspectorResourceContentLoader.h"
-
-#include "FetchInitiatorTypeNames.h"
-#include "core/css/CSSStyleSheet.h"
-#include "core/css/StyleSheetContents.h"
-#include "core/fetch/CSSStyleSheetResource.h"
-#include "core/fetch/Resource.h"
-#include "core/fetch/ResourceFetcher.h"
-#include "core/fetch/ResourcePtr.h"
-#include "core/fetch/StyleSheetResourceClient.h"
-#include "core/frame/LocalFrame.h"
-#include "core/html/VoidCallback.h"
-#include "core/inspector/InspectorCSSAgent.h"
-#include "core/inspector/InspectorPageAgent.h"
-#include "core/page/Page.h"
-
-namespace WebCore {
-
-InspectorResourceContentLoader::InspectorResourceContentLoader(Page* page)
-    : m_allRequestsStarted(false)
-{
-    Vector<Document*> documents;
-    for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
-        if (!frame->isLocalFrame())
-            continue;
-        LocalFrame* localFrame = toLocalFrame(frame);
-        documents.append(localFrame->document());
-        documents.appendVector(InspectorPageAgent::importsForFrame(localFrame));
-    }
-    for (Vector<Document*>::const_iterator it = documents.begin(); it != documents.end(); ++it) {
-        HashSet<String> urlsToFetch;
-        Document* document = *it;
-        ResourceRequest resourceRequest;
-
-        if (!document->frame() || !document->frame()->loader().requestFromHistoryForInspector(ReturnCacheDataDontLoad, &resourceRequest)) {
-            resourceRequest = document->url();
-            resourceRequest.setCachePolicy(ReturnCacheDataDontLoad);
-        }
-
-        if (!resourceRequest.url().string().isEmpty()) {
-            urlsToFetch.add(resourceRequest.url().string());
-            FetchRequest request(resourceRequest, FetchInitiatorTypeNames::internal);
-            ResourcePtr<Resource> resource = document->fetcher()->fetchRawResource(request);
-            // Prevent garbage collection by holding a reference to this resource.
-            m_pendingResources.add(resource.get());
-            m_resources.append(resource.get());
-            resource->addClient(static_cast<RawResourceClient*>(this));
-        }
-
-        Vector<CSSStyleSheet*> styleSheets;
-        InspectorCSSAgent::collectAllDocumentStyleSheets(document, styleSheets);
-        for (Vector<CSSStyleSheet*>::const_iterator it2 = styleSheets.begin(); it2 != styleSheets.end(); ++it2) {
-            CSSStyleSheet* styleSheet = *it2;
-            if (styleSheet->isInline() || !styleSheet->contents()->loadCompleted())
-                continue;
-            String url = styleSheet->contents()->baseURL().string();
-            if (url.isEmpty() || urlsToFetch.contains(url))
-                continue;
-            urlsToFetch.add(url);
-            FetchRequest request(ResourceRequest(url), FetchInitiatorTypeNames::internal);
-            ResourcePtr<Resource> resource = document->fetcher()->fetchCSSStyleSheet(request);
-            // Prevent garbage collection by holding a reference to this resource.
-            if (m_pendingResources.contains(resource.get()))
-                continue;
-            m_pendingResources.add(resource.get());
-            m_resources.append(resource.get());
-            resource->addClient(static_cast<StyleSheetResourceClient*>(this));
-        }
-    }
-
-    m_allRequestsStarted = true;
-    checkDone();
-}
-
-void InspectorResourceContentLoader::addListener(PassOwnPtr<VoidCallback> callback)
-{
-    m_callbacks.append(callback);
-    checkDone();
-}
-
-InspectorResourceContentLoader::~InspectorResourceContentLoader()
-{
-    stop();
-}
-
-void InspectorResourceContentLoader::stop()
-{
-    HashSet<Resource*> pendingResources;
-    m_pendingResources.swap(pendingResources);
-    for (HashSet<Resource*>::const_iterator it = pendingResources.begin(); it != pendingResources.end(); ++it)
-        removeAsClientFromResource(*it);
-    // Make sure all callbacks are called to prevent infinite waiting time.
-    checkDone();
-}
-
-void InspectorResourceContentLoader::removeAsClientFromResource(Resource* resource)
-{
-    if (resource->type() == Resource::Raw)
-        resource->removeClient(static_cast<RawResourceClient*>(this));
-    else
-        resource->removeClient(static_cast<StyleSheetResourceClient*>(this));
-}
-
-bool InspectorResourceContentLoader::hasFinished()
-{
-    return m_allRequestsStarted && m_pendingResources.size() == 0;
-}
-
-void InspectorResourceContentLoader::checkDone()
-{
-    if (!hasFinished())
-        return;
-    Vector<OwnPtr<VoidCallback> > callbacks;
-    callbacks.swap(m_callbacks);
-    for (Vector<OwnPtr<VoidCallback> >::const_iterator it = callbacks.begin(); it != callbacks.end(); ++it)
-        (*it)->handleEvent();
-}
-
-void InspectorResourceContentLoader::notifyFinished(Resource* resource)
-{
-    if (resource->type() == Resource::CSSStyleSheet)
-        return;
-    resourceFinished(resource);
-}
-
-void InspectorResourceContentLoader::setCSSStyleSheet(const String&, const KURL&, const String&, const CSSStyleSheetResource* resource)
-{
-    resourceFinished(const_cast<CSSStyleSheetResource*>(resource));
-}
-
-void InspectorResourceContentLoader::resourceFinished(Resource* resource)
-{
-    m_pendingResources.remove(resource);
-    removeAsClientFromResource(resource);
-    checkDone();
-}
-
-} // namespace WebCore