auto import from //depot/cupcake/@135843

1 files changed, 0 insertions, 924 deletions

diff --git a/WebCore/loader/DocumentLoader.cpp b/WebCore/loader/DocumentLoader.cpp
deleted file mode 100644
index d9d99ea..0000000
--- a/WebCore/loader/DocumentLoader.cpp
+++ /dev/null
@@ -1,924 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2008 Apple 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:
- *
- * 1.  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer. 
- * 2.  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution. 
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-#include "DocumentLoader.h"
-
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-#include "ApplicationCache.h"
-#include "ApplicationCacheGroup.h"
-#include "ApplicationCacheResource.h"
-#endif
-#if ENABLE(ARCHIVE) // ANDROID extension: disabled to reduce code size
-#include "ArchiveFactory.h"
-#include "ArchiveResourceCollection.h"
-#else
-#include "SubstituteResource.h"
-#endif
-#include "CachedPage.h"
-#include "DocLoader.h"
-#include "Document.h"
-#include "Event.h"
-#include "Frame.h"
-#include "FrameLoader.h"
-#include "FrameTree.h"
-#include "HistoryItem.h"
-#include "Logging.h"
-#include "MainResourceLoader.h"
-#include "Page.h"
-#include "PlatformString.h"
-#include "Settings.h"
-#include "SharedBuffer.h"
-#include "StringBuffer.h"
-#include "XMLTokenizer.h"
-
-#include <wtf/Assertions.h>
-#include <wtf/unicode/Unicode.h>
-
-namespace WebCore {
-
-/*
- * Performs four operations:
- *  1. Convert backslashes to currency symbols
- *  2. Convert control characters to spaces
- *  3. Trim leading and trailing spaces
- *  4. Collapse internal whitespace.
- */
-static inline String canonicalizedTitle(const String& title, Frame* frame)
-{
-    ASSERT(!title.isEmpty());
-
-    const UChar* characters = title.characters();
-    unsigned length = title.length();
-    unsigned i;
-
-    StringBuffer buffer(length);
-    unsigned builderIndex = 0;
-
-    // Skip leading spaces and leading characters that would convert to spaces
-    for (i = 0; i < length; ++i) {
-        UChar c = characters[i];
-        if (!(c <= 0x20 || c == 0x7F))
-            break;
-    }
-
-    if (i == length)
-        return "";
-
-    // Replace control characters with spaces, and backslashes with currency symbols, and collapse whitespace.
-    bool previousCharWasWS = false;
-    for (; i < length; ++i) {
-        UChar c = characters[i];
-        if (c <= 0x20 || c == 0x7F || (WTF::Unicode::category(c) & (WTF::Unicode::Separator_Line | WTF::Unicode::Separator_Paragraph))) {
-            if (previousCharWasWS)
-                continue;
-            buffer[builderIndex++] = ' ';
-            previousCharWasWS = true;
-        } else if (c == '\\') {
-            buffer[builderIndex++] = frame->backslashAsCurrencySymbol();
-            previousCharWasWS = false;
-        } else {
-            buffer[builderIndex++] = c;
-            previousCharWasWS = false;
-        }
-    }
-
-    // Strip trailing spaces
-    while (builderIndex > 0) {
-        --builderIndex;
-        if (buffer[builderIndex] != ' ')
-            break;
-    }
-
-    if (!builderIndex && buffer[builderIndex] == ' ')
-        return "";
-
-    buffer.shrink(builderIndex + 1);
-    return String::adopt(buffer);
-}
-
-static void cancelAll(const ResourceLoaderSet& loaders)
-{
-    const ResourceLoaderSet copy = loaders;
-    ResourceLoaderSet::const_iterator end = copy.end();
-    for (ResourceLoaderSet::const_iterator it = copy.begin(); it != end; ++it)
-        (*it)->cancel();
-}
-
-static void setAllDefersLoading(const ResourceLoaderSet& loaders, bool defers)
-{
-    const ResourceLoaderSet copy = loaders;
-    ResourceLoaderSet::const_iterator end = copy.end();
-    for (ResourceLoaderSet::const_iterator it = copy.begin(); it != end; ++it)
-        (*it)->setDefersLoading(defers);
-}
-
-DocumentLoader::DocumentLoader(const ResourceRequest& req, const SubstituteData& substituteData)
-    : m_deferMainResourceDataLoad(true)
-    , m_frame(0)
-    , m_originalRequest(req)
-    , m_substituteData(substituteData)
-    , m_originalRequestCopy(req)
-    , m_request(req)
-    , m_committed(false)
-    , m_isStopping(false)
-    , m_loading(false)
-    , m_gotFirstByte(false)
-    , m_primaryLoadComplete(false)
-    , m_isClientRedirect(false)
-    , m_loadingFromCachedPage(false)
-    , m_stopRecordingResponses(false)
-    , m_substituteResourceDeliveryTimer(this, &DocumentLoader::substituteResourceDeliveryTimerFired)
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-    , m_candidateApplicationCacheGroup(0)
-#endif
-{
-}
-
-FrameLoader* DocumentLoader::frameLoader() const
-{
-    if (!m_frame)
-        return 0;
-    return m_frame->loader();
-}
-
-DocumentLoader::~DocumentLoader()
-{
-    ASSERT(!m_frame || frameLoader()->activeDocumentLoader() != this || !frameLoader()->isLoading());
-    
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-    if (m_applicationCache)
-        m_applicationCache->group()->documentLoaderDestroyed(this);
-    else if (m_candidateApplicationCacheGroup)
-        m_candidateApplicationCacheGroup->documentLoaderDestroyed(this);
-#endif
-}
-
-PassRefPtr<SharedBuffer> DocumentLoader::mainResourceData() const
-{
-    if (m_mainResourceData)
-        return m_mainResourceData;
-    if (m_mainResourceLoader)
-        return m_mainResourceLoader->resourceData();
-    return 0;
-}
-
-const ResourceRequest& DocumentLoader::originalRequest() const
-{
-    return m_originalRequest;
-}
-
-const ResourceRequest& DocumentLoader::originalRequestCopy() const
-{
-    return m_originalRequestCopy;
-}
-
-const ResourceRequest& DocumentLoader::request() const
-{
-    return m_request;
-}
-
-ResourceRequest& DocumentLoader::request()
-{
-    return m_request;
-}
-
-const KURL& DocumentLoader::url() const
-{
-    return request().url();
-}
-
-void DocumentLoader::replaceRequestURLForAnchorScroll(const KURL& url)
-{
-    m_originalRequestCopy.setURL(url);
-    m_request.setURL(url);
-}
-
-void DocumentLoader::setRequest(const ResourceRequest& req)
-{
-    // Replacing an unreachable URL with alternate content looks like a server-side
-    // redirect at this point, but we can replace a committed dataSource.
-    bool handlingUnreachableURL = false;
-
-    handlingUnreachableURL = m_substituteData.isValid() && !m_substituteData.failingURL().isEmpty();
-
-    if (handlingUnreachableURL)
-        m_committed = false;
-
-    // We should never be getting a redirect callback after the data
-    // source is committed, except in the unreachable URL case. It 
-    // would be a WebFoundation bug if it sent a redirect callback after commit.
-    ASSERT(!m_committed);
-
-    KURL oldURL = m_request.url();
-    m_request = req;
-
-    // Only send webView:didReceiveServerRedirectForProvisionalLoadForFrame: if URL changed.
-    // Also, don't send it when replacing unreachable URLs with alternate content.
-    if (!handlingUnreachableURL && oldURL != req.url())
-        frameLoader()->didReceiveServerRedirectForProvisionalLoadForFrame();
-}
-
-void DocumentLoader::setMainDocumentError(const ResourceError& error)
-{
-    m_mainDocumentError = error;    
-    frameLoader()->setMainDocumentError(this, error);
- }
-
-void DocumentLoader::clearErrors()
-{
-    m_mainDocumentError = ResourceError();
-}
-
-void DocumentLoader::mainReceivedError(const ResourceError& error, bool isComplete)
-{
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-    ApplicationCacheGroup* group = m_candidateApplicationCacheGroup;
-    if (!group && m_applicationCache && !mainResourceApplicationCache())
-        group = m_applicationCache->group();
-    
-    if (group)
-        group->failedLoadingMainResource(this);
-#endif
-    
-    if (!frameLoader())
-        return;
-    setMainDocumentError(error);
-    if (isComplete)
-        frameLoader()->mainReceivedCompleteError(this, error);
-}
-
-// Cancels the data source's pending loads.  Conceptually, a data source only loads
-// one document at a time, but one document may have many related resources. 
-// stopLoading will stop all loads initiated by the data source, 
-// but not loads initiated by child frames' data sources -- that's the WebFrame's job.
-void DocumentLoader::stopLoading()
-{
-    // In some rare cases, calling FrameLoader::stopLoading could set m_loading to false.
-    // (This can happen when there's a single XMLHttpRequest currently loading and stopLoading causes it
-    // to stop loading. Because of this, we need to save it so we don't return early.
-    bool loading = m_loading;
-    
-    if (m_committed) {
-        // Attempt to stop the frame if the document loader is loading, or if it is done loading but
-        // still  parsing. Failure to do so can cause a world leak.
-        Document* doc = m_frame->document();
-        
-        if (loading || (doc && doc->parsing()))
-            m_frame->loader()->stopLoading(false);
-    }
-
-    // Always cancel multipart loaders
-    cancelAll(m_multipartSubresourceLoaders);
-
-    if (!loading)
-        return;
-    
-    RefPtr<Frame> protectFrame(m_frame);
-    RefPtr<DocumentLoader> protectLoader(this);
-
-    m_isStopping = true;
-
-    FrameLoader* frameLoader = DocumentLoader::frameLoader();
-    
-    if (m_mainResourceLoader)
-        // Stop the main resource loader and let it send the cancelled message.
-        m_mainResourceLoader->cancel();
-    else if (!m_subresourceLoaders.isEmpty())
-        // The main resource loader already finished loading. Set the cancelled error on the 
-        // document and let the subresourceLoaders send individual cancelled messages below.
-        setMainDocumentError(frameLoader->cancelledError(m_request));
-    else
-        // If there are no resource loaders, we need to manufacture a cancelled message.
-        // (A back/forward navigation has no resource loaders because its resources are cached.)
-        mainReceivedError(frameLoader->cancelledError(m_request), true);
-    
-    stopLoadingSubresources();
-    stopLoadingPlugIns();
-    
-    m_isStopping = false;
-}
-
-void DocumentLoader::setupForReplace()
-{
-    frameLoader()->setupForReplace();
-    m_committed = false;
-}
-
-void DocumentLoader::commitIfReady()
-{
-    if (m_gotFirstByte && !m_committed) {
-        m_committed = true;
-        frameLoader()->commitProvisionalLoad(0);
-    }
-}
-
-void DocumentLoader::finishedLoading()
-{
-    m_gotFirstByte = true;   
-    commitIfReady();
-    if (FrameLoader* loader = frameLoader()) {
-        loader->finishedLoadingDocument(this);
-        loader->end();
-    }
-}
-
-void DocumentLoader::commitLoad(const char* data, int length)
-{
-    // Both unloading the old page and parsing the new page may execute JavaScript which destroys the datasource
-    // by starting a new load, so retain temporarily.
-    RefPtr<DocumentLoader> protect(this);
-
-    commitIfReady();
-    if (FrameLoader* frameLoader = DocumentLoader::frameLoader())
-        frameLoader->committedLoad(this, data, length);
-}
-
-bool DocumentLoader::doesProgressiveLoad(const String& MIMEType) const
-{
-    return !frameLoader()->isReplacing() || MIMEType == "text/html";
-}
-
-void DocumentLoader::receivedData(const char* data, int length)
-{    
-    m_gotFirstByte = true;
-    if (doesProgressiveLoad(m_response.mimeType()))
-        commitLoad(data, length);
-}
-
-void DocumentLoader::setupForReplaceByMIMEType(const String& newMIMEType)
-{
-    if (!m_gotFirstByte)
-        return;
-    
-    String oldMIMEType = m_response.mimeType();
-    
-    if (!doesProgressiveLoad(oldMIMEType)) {
-        frameLoader()->revertToProvisional(this);
-        setupForReplace();
-        RefPtr<SharedBuffer> resourceData = mainResourceData();
-        commitLoad(resourceData->data(), resourceData->size());
-    }
-    
-    frameLoader()->finishedLoadingDocument(this);
-    m_frame->loader()->end();
-    
-    frameLoader()->setReplacing();
-    m_gotFirstByte = false;
-    
-    if (doesProgressiveLoad(newMIMEType)) {
-        frameLoader()->revertToProvisional(this);
-        setupForReplace();
-    }
-    
-    stopLoadingSubresources();
-    stopLoadingPlugIns();
-#if ENABLE(ARCHIVE) // ANDROID extension: disabled to reduce code size
-    clearArchiveResources();
-#endif
-}
-
-void DocumentLoader::updateLoading()
-{
-    ASSERT(this == frameLoader()->activeDocumentLoader());
-    setLoading(frameLoader()->isLoading());
-}
-
-void DocumentLoader::setFrame(Frame* frame)
-{
-    if (m_frame == frame)
-        return;
-    ASSERT(frame && !m_frame);
-    m_frame = frame;
-    attachToFrame();
-}
-
-void DocumentLoader::attachToFrame()
-{
-    ASSERT(m_frame);
-}
-
-void DocumentLoader::detachFromFrame()
-{
-    ASSERT(m_frame);
-    m_frame = 0;
-}
-
-void DocumentLoader::prepareForLoadStart()
-{
-    ASSERT(!m_isStopping);
-    setPrimaryLoadComplete(false);
-    ASSERT(frameLoader());
-    clearErrors();
-    
-    setLoading(true);
-    
-    frameLoader()->prepareForLoadStart();
-}
-
-void DocumentLoader::setPrimaryLoadComplete(bool flag)
-{
-    m_primaryLoadComplete = flag;
-    if (flag) {
-        if (m_mainResourceLoader) {
-            m_mainResourceData = m_mainResourceLoader->resourceData();
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-            m_mainResourceApplicationCache = m_mainResourceLoader->applicationCache();
-#endif
-            m_mainResourceLoader = 0;
-        }
-        updateLoading();
-    }
-}
-
-bool DocumentLoader::isLoadingInAPISense() const
-{
-    // Once a frame has loaded, we no longer need to consider subresources,
-    // but we still need to consider subframes.
-    if (frameLoader()->state() != FrameStateComplete) {
-        if (!m_primaryLoadComplete && isLoading())
-            return true;
-        if (!m_subresourceLoaders.isEmpty())
-            return true;
-        if (Document* doc = m_frame->document()) {
-            if (doc->docLoader()->requestCount())
-                return true;
-            if (Tokenizer* tok = doc->tokenizer())
-                if (tok->processingData())
-                    return true;
-        }
-    }
-    return frameLoader()->subframeIsLoading();
-}
-
-#if ENABLE(ARCHIVE) // ANDROID extension: disabled to reduce code size
-void DocumentLoader::addAllArchiveResources(Archive* archive)
-{
-    if (!m_archiveResourceCollection)
-        m_archiveResourceCollection.set(new ArchiveResourceCollection);
-        
-    ASSERT(archive);
-    if (!archive)
-        return;
-        
-    m_archiveResourceCollection->addAllResources(archive);
-}
-
-// FIXME: Adding a resource directly to a DocumentLoader/ArchiveResourceCollection seems like bad design, but is API some apps rely on.
-// Can we change the design in a manner that will let us deprecate that API without reducing functionality of those apps?
-void DocumentLoader::addArchiveResource(PassRefPtr<ArchiveResource> resource)
-{
-    if (!m_archiveResourceCollection)
-        m_archiveResourceCollection.set(new ArchiveResourceCollection);
-        
-    ASSERT(resource);
-    if (!resource)
-        return;
-        
-    m_archiveResourceCollection->addResource(resource);
-}
-
-ArchiveResource* DocumentLoader::archiveResourceForURL(const KURL& url) const
-{
-    if (!m_archiveResourceCollection)
-        return 0;
-        
-    ArchiveResource* resource = m_archiveResourceCollection->archiveResourceForURL(url);
-
-    return resource && !resource->shouldIgnoreWhenUnarchiving() ? resource : 0;
-}
-
-PassRefPtr<Archive> DocumentLoader::popArchiveForSubframe(const String& frameName)
-{
-    return m_archiveResourceCollection ? m_archiveResourceCollection->popSubframeArchive(frameName) : 0;
-}
-
-void DocumentLoader::clearArchiveResources()
-{
-    m_archiveResourceCollection.clear();
-    m_substituteResourceDeliveryTimer.stop();
-}
-
-void DocumentLoader::setParsedArchiveData(PassRefPtr<SharedBuffer> data)
-{
-    m_parsedArchiveData = data;
-}
-
-SharedBuffer* DocumentLoader::parsedArchiveData() const
-{
-    return m_parsedArchiveData.get();
-}
-
-PassRefPtr<ArchiveResource> DocumentLoader::mainResource() const
-{
-    const ResourceResponse& r = response();
-    RefPtr<SharedBuffer> mainResourceBuffer = mainResourceData();
-    if (!mainResourceBuffer)
-        mainResourceBuffer = SharedBuffer::create();
-        
-    return ArchiveResource::create(mainResourceBuffer, r.url(), r.mimeType(), r.textEncodingName(), frame()->tree()->name());
-}
-
-PassRefPtr<ArchiveResource> DocumentLoader::subresource(const KURL& url) const
-{
-    if (!isCommitted())
-        return 0;
-    
-    Document* doc = m_frame->document();
-    if (!doc)
-        return archiveResourceForURL(url);
-        
-    CachedResource* resource = doc->docLoader()->cachedResource(url);
-    if (!resource || resource->preloadResult() == CachedResource::PreloadReferenced)
-        return archiveResourceForURL(url);
-        
-    return ArchiveResource::create(resource->data(), url, resource->response());
-}
-
-void DocumentLoader::getSubresources(Vector<PassRefPtr<ArchiveResource> >& subresources) const
-{
-    if (!isCommitted())
-        return;
-
-    Document* document = m_frame->document();
-    if (!document)
-        return;
-
-    const HashMap<String, CachedResource*>& allResources = document->docLoader()->allCachedResources();
-    HashMap<String, CachedResource*>::const_iterator end = allResources.end();
-    for (HashMap<String, CachedResource*>::const_iterator it = allResources.begin(); it != end; ++it) {
-        RefPtr<ArchiveResource> subresource = this->subresource(KURL(it->second->url()));
-        if (subresource)
-            subresources.append(subresource.release());
-    }
-
-    return;
-}
-#endif
-
-void DocumentLoader::deliverSubstituteResourcesAfterDelay()
-{
-    if (m_pendingSubstituteResources.isEmpty())
-        return;
-    ASSERT(m_frame && m_frame->page());
-    if (m_frame->page()->defersLoading())
-        return;
-    if (!m_substituteResourceDeliveryTimer.isActive())
-        m_substituteResourceDeliveryTimer.startOneShot(0);
-}
-
-void DocumentLoader::substituteResourceDeliveryTimerFired(Timer<DocumentLoader>*)
-{
-    if (m_pendingSubstituteResources.isEmpty())
-        return;
-    ASSERT(m_frame && m_frame->page());
-    if (m_frame->page()->defersLoading())
-        return;
-
-    SubstituteResourceMap copy;
-    copy.swap(m_pendingSubstituteResources);
-
-    SubstituteResourceMap::const_iterator end = copy.end();
-    for (SubstituteResourceMap::const_iterator it = copy.begin(); it != end; ++it) {
-        RefPtr<ResourceLoader> loader = it->first;
-        SubstituteResource* resource = it->second.get();
-        
-        if (resource) {
-            SharedBuffer* data = resource->data();
-        
-            loader->didReceiveResponse(resource->response());
-            loader->didReceiveData(data->data(), data->size(), data->size(), true);
-            loader->didFinishLoading();
-        } else {
-            // A null resource means that we should fail the load.
-            // FIXME: Maybe we should use another error here - something like "not in cache".
-            loader->didFail(loader->cannotShowURLError());
-        }
-    }
-}
-
-#ifndef NDEBUG
-bool DocumentLoader::isSubstituteLoadPending(ResourceLoader* loader) const
-{
-    return m_pendingSubstituteResources.contains(loader);
-}
-#endif
-
-void DocumentLoader::cancelPendingSubstituteLoad(ResourceLoader* loader)
-{
-    if (m_pendingSubstituteResources.isEmpty())
-        return;
-    m_pendingSubstituteResources.remove(loader);
-    if (m_pendingSubstituteResources.isEmpty())
-        m_substituteResourceDeliveryTimer.stop();
-}
-
-#if ENABLE(ARCHIVE) // ANDROID extension: disabled to reduce code size
-bool DocumentLoader::scheduleArchiveLoad(ResourceLoader* loader, const ResourceRequest& request, const KURL& originalURL)
-{
-    ArchiveResource* resource = 0;
-    
-    if (request.url() == originalURL)
-        resource = archiveResourceForURL(originalURL);
-
-    if (!resource) {
-        // WebArchiveDebugMode means we fail loads instead of trying to fetch them from the network if they're not in the archive.
-        bool shouldFailLoad = m_frame->settings()->webArchiveDebugModeEnabled() && ArchiveFactory::isArchiveMimeType(responseMIMEType());
-
-        if (!shouldFailLoad)
-            return false;
-    }
-    
-    m_pendingSubstituteResources.set(loader, resource);
-    deliverSubstituteResourcesAfterDelay();
-    
-    return true;
-}
-#endif
-
-void DocumentLoader::addResponse(const ResourceResponse& r)
-{
-    if (!m_stopRecordingResponses)
-        m_responses.append(r);
-}
-
-void DocumentLoader::stopRecordingResponses()
-{
-    m_stopRecordingResponses = true;
-}
-
-void DocumentLoader::setTitle(const String& title)
-{
-    if (title.isEmpty())
-        return;
-
-    String trimmed = canonicalizedTitle(title, m_frame);
-    if (!trimmed.isEmpty() && m_pageTitle != trimmed) {
-        frameLoader()->willChangeTitle(this);
-        m_pageTitle = trimmed;
-        frameLoader()->didChangeTitle(this);
-    }
-}
-
-KURL DocumentLoader::urlForHistory() const
-{
-    // Return the URL to be used for history and B/F list.
-    // Returns nil for WebDataProtocol URLs that aren't alternates 
-    // for unreachable URLs, because these can't be stored in history.
-    if (m_substituteData.isValid())
-        return unreachableURL();
-
-    return m_originalRequestCopy.url();
-}
-
-void DocumentLoader::loadFromCachedPage(PassRefPtr<CachedPage> cachedPage)
-{
-    LOG(PageCache, "WebCorePageCache: DocumentLoader %p loading from cached page %p", this, cachedPage.get());
-    
-    prepareForLoadStart();
-    setLoadingFromCachedPage(true);
-    setCommitted(true);
-    frameLoader()->commitProvisionalLoad(cachedPage);
-}
-
-const KURL& DocumentLoader::originalURL() const
-{
-    return m_originalRequestCopy.url();
-}
-
-const KURL& DocumentLoader::requestURL() const
-{
-    return request().url();
-}
-
-const KURL& DocumentLoader::responseURL() const
-{
-    return m_response.url();
-}
-
-const String& DocumentLoader::responseMIMEType() const
-{
-    return m_response.mimeType();
-}
-
-const KURL& DocumentLoader::unreachableURL() const
-{
-    return m_substituteData.failingURL();
-}
-
-void DocumentLoader::setDefersLoading(bool defers)
-{
-    if (m_mainResourceLoader)
-        m_mainResourceLoader->setDefersLoading(defers);
-    setAllDefersLoading(m_subresourceLoaders, defers);
-    setAllDefersLoading(m_plugInStreamLoaders, defers);
-    if (!defers)
-        deliverSubstituteResourcesAfterDelay();
-}
-
-void DocumentLoader::stopLoadingPlugIns()
-{
-    cancelAll(m_plugInStreamLoaders);
-}
-
-void DocumentLoader::stopLoadingSubresources()
-{
-    cancelAll(m_subresourceLoaders);
-}
-
-void DocumentLoader::addSubresourceLoader(ResourceLoader* loader)
-{
-    m_subresourceLoaders.add(loader);
-    setLoading(true);
-}
-
-void DocumentLoader::removeSubresourceLoader(ResourceLoader* loader)
-{
-    m_subresourceLoaders.remove(loader);
-    updateLoading();
-    if (Frame* frame = m_frame)
-        frame->loader()->checkLoadComplete();
-}
-
-void DocumentLoader::addPlugInStreamLoader(ResourceLoader* loader)
-{
-    m_plugInStreamLoaders.add(loader);
-    setLoading(true);
-}
-
-void DocumentLoader::removePlugInStreamLoader(ResourceLoader* loader)
-{
-    m_plugInStreamLoaders.remove(loader);
-    updateLoading();
-}
-
-bool DocumentLoader::isLoadingMainResource() const
-{
-    return !!m_mainResourceLoader;
-}
-
-bool DocumentLoader::isLoadingSubresources() const
-{
-    return !m_subresourceLoaders.isEmpty();
-}
-
-bool DocumentLoader::isLoadingPlugIns() const
-{
-    return !m_plugInStreamLoaders.isEmpty();
-}
-
-bool DocumentLoader::isLoadingMultipartContent() const
-{
-    return m_mainResourceLoader && m_mainResourceLoader->isLoadingMultipartContent();
-}
-
-bool DocumentLoader::startLoadingMainResource(unsigned long identifier)
-{
-    ASSERT(!m_mainResourceLoader);
-    m_mainResourceLoader = MainResourceLoader::create(m_frame);
-    m_mainResourceLoader->setIdentifier(identifier);
-
-    // FIXME: Is there any way the extra fields could have not been added by now?
-    // If not, it would be great to remove this line of code.
-    frameLoader()->addExtraFieldsToRequest(m_request, true, false);
-
-    if (!m_mainResourceLoader->load(m_request, m_substituteData)) {
-        // FIXME: If this should really be caught, we should just ASSERT this doesn't happen;
-        // should it be caught by other parts of WebKit or other parts of the app?
-        LOG_ERROR("could not create WebResourceHandle for URL %s -- should be caught by policy handler level", m_request.url().string().ascii().data());
-        m_mainResourceLoader = 0;
-        return false;
-    }
-
-    return true;
-}
-
-void DocumentLoader::cancelMainResourceLoad(const ResourceError& error)
-{
-    m_mainResourceLoader->cancel(error);
-}
-
-void DocumentLoader::subresourceLoaderFinishedLoadingOnePart(ResourceLoader* loader)
-{
-    m_multipartSubresourceLoaders.add(loader);
-    m_subresourceLoaders.remove(loader);
-    updateLoading();
-    if (Frame* frame = m_frame)
-        frame->loader()->checkLoadComplete();    
-}
-
-void DocumentLoader::iconLoadDecisionAvailable()
-{
-    if (m_frame)
-        m_frame->loader()->iconLoadDecisionAvailable();
-}
-
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-void DocumentLoader::setCandidateApplicationCacheGroup(ApplicationCacheGroup* group)
-{
-    ASSERT(!m_applicationCache);
-    m_candidateApplicationCacheGroup = group;
-}
-    
-void DocumentLoader::setApplicationCache(PassRefPtr<ApplicationCache> applicationCache)
-{
-    if (m_candidateApplicationCacheGroup) {
-        ASSERT(!m_applicationCache);
-        m_candidateApplicationCacheGroup = 0;
-    }
-
-    m_applicationCache = applicationCache;
-}
-
-ApplicationCache* DocumentLoader::topLevelApplicationCache() const
-{
-    if (!m_frame)
-        return 0;
-    
-    if (m_applicationCache)
-        return m_applicationCache.get();
-    
-    if (Page* page = m_frame->page())
-        return page->mainFrame()->loader()->documentLoader()->applicationCache();
-    
-    return 0;
-}
-
-ApplicationCache* DocumentLoader::mainResourceApplicationCache() const
-{
-    if (m_mainResourceApplicationCache)
-        return m_mainResourceApplicationCache.get();
-    if (m_mainResourceLoader)
-        return m_mainResourceLoader->applicationCache();
-    return 0;
-}
-
-bool DocumentLoader::shouldLoadResourceFromApplicationCache(const ResourceRequest& request, ApplicationCacheResource*& resource)
-{
-    ApplicationCache* cache = topLevelApplicationCache();    
-    if (!cache)
-        return false;
-    
-    // If the resource is not a HTTP/HTTPS GET, then abort
-    if (!ApplicationCache::requestIsHTTPOrHTTPSGet(request))
-        return false;
-    
-    if (cache->isURLInOnlineWhitelist(request.url()))
-        return false;
-    
-    resource = cache->resourceForURL(request.url());
-    
-    // Don't load foreign resources.
-    if (resource && (resource->type() & ApplicationCacheResource::Foreign))
-        resource = 0;
-    
-    return true;
-}
-
-bool DocumentLoader::scheduleApplicationCacheLoad(ResourceLoader* loader, const ResourceRequest& request, const KURL& originalURL)
-{
-    if (!frameLoader()->frame()->settings() || !frameLoader()->frame()->settings()->offlineWebApplicationCacheEnabled())
-        return false;
-    
-    if (request.url() != originalURL)
-        return false;
-
-    ApplicationCacheResource* resource;
-    if (!shouldLoadResourceFromApplicationCache(request, resource))
-        // FIXME: Handle opportunistic caching namespaces
-        return false;
-    
-    m_pendingSubstituteResources.set(loader, resource);
-    deliverSubstituteResourcesAfterDelay();
-        
-    return true;
-}
-
-#endif // ENABLE(OFFLINE_WEB_APPLICATIONS)
-
-}