Import Qt5x2 branch of QtWebkit for Qt 5.2

Importing a new snapshot of webkit.

Change-Id: I2d01ad12cdc8af8cb015387641120a9d7ea5f10c
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>

1 files changed, 0 insertions, 665 deletions

diff --git a/Source/WebCore/loader/MainResourceLoader.cpp b/Source/WebCore/loader/MainResourceLoader.cpp
deleted file mode 100644
index 3ff68d8bb..000000000
--- a/Source/WebCore/loader/MainResourceLoader.cpp
+++ /dev/null
@@ -1,665 +0,0 @@
-/*
- * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
- * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
- *
- * 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 "MainResourceLoader.h"
-
-#include "ApplicationCacheHost.h"
-#include "BackForwardController.h"
-#include "Console.h"
-#include "DOMWindow.h"
-#include "Document.h"
-#include "DocumentLoadTiming.h"
-#include "DocumentLoader.h"
-#include "FormState.h"
-#include "Frame.h"
-#include "FrameLoader.h"
-#include "FrameLoaderClient.h"
-#include "HTMLFormElement.h"
-#include "HistoryItem.h"
-#include "InspectorInstrumentation.h"
-#include "LoaderStrategy.h"
-#include "Page.h"
-#include "PlatformStrategies.h"
-#include "ResourceError.h"
-#include "ResourceHandle.h"
-#include "ResourceLoadScheduler.h"
-#include "SchemeRegistry.h"
-#include "SecurityOrigin.h"
-#include "Settings.h"
-#include <wtf/CurrentTime.h>
-
-#if PLATFORM(QT)
-#include "PluginDatabase.h"
-#endif
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-#include "WebCoreSystemInterface.h"
-#endif
-
-// FIXME: More that is in common with SubresourceLoader should move up into ResourceLoader.
-
-namespace WebCore {
-
-MainResourceLoader::MainResourceLoader(Frame* frame)
-    : ResourceLoader(frame, ResourceLoaderOptions(SendCallbacks, SniffContent, BufferData, AllowStoredCredentials, AskClientForCrossOriginCredentials, SkipSecurityCheck))
-    , m_dataLoadTimer(this, &MainResourceLoader::handleSubstituteDataLoadNow)
-    , m_loadingMultipartContent(false)
-    , m_waitingForContentPolicy(false)
-    , m_timeOfLastDataReceived(0.0)
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    , m_filter(0)
-#endif
-{
-}
-
-MainResourceLoader::~MainResourceLoader()
-{
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    ASSERT(!m_filter);
-#endif
-}
-
-PassRefPtr<MainResourceLoader> MainResourceLoader::create(Frame* frame)
-{
-    return adoptRef(new MainResourceLoader(frame));
-}
-
-void MainResourceLoader::receivedError(const ResourceError& error)
-{
-    // Calling receivedMainResourceError will likely result in the last reference to this object to go away.
-    RefPtr<MainResourceLoader> protect(this);
-    RefPtr<Frame> protectFrame(m_frame);
-
-    // It is important that we call DocumentLoader::mainReceivedError before calling 
-    // ResourceLoadNotifier::didFailToLoad because mainReceivedError clears out the relevant
-    // document loaders. Also, mainReceivedError ends up calling a FrameLoadDelegate method
-    // and didFailToLoad calls a ResourceLoadDelegate method and they need to be in the correct order.
-    documentLoader()->mainReceivedError(error);
-
-    if (!cancelled()) {
-        ASSERT(!reachedTerminalState());
-        frameLoader()->notifier()->didFailToLoad(this, error);
-        
-        releaseResources();
-    }
-
-    ASSERT(reachedTerminalState());
-}
-
-void MainResourceLoader::willCancel(const ResourceError&)
-{
-    m_dataLoadTimer.stop();
-
-    if (m_waitingForContentPolicy) {
-        frameLoader()->policyChecker()->cancelCheck();
-        ASSERT(m_waitingForContentPolicy);
-        m_waitingForContentPolicy = false;
-        deref(); // balances ref in didReceiveResponse
-    }
-}
-
-void MainResourceLoader::didCancel(const ResourceError& error)
-{
-    // We should notify the frame loader after fully canceling the load, because it can do complicated work
-    // like calling DOMWindow::print(), during which a half-canceled load could try to finish.
-    documentLoader()->mainReceivedError(error);
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (m_filter) {
-        wkFilterRelease(m_filter);
-        m_filter = 0;
-    }
-#endif
-}
-
-ResourceError MainResourceLoader::interruptedForPolicyChangeError() const
-{
-    return frameLoader()->client()->interruptedForPolicyChangeError(request());
-}
-
-void MainResourceLoader::stopLoadingForPolicyChange()
-{
-    ResourceError error = interruptedForPolicyChangeError();
-    error.setIsCancellation(true);
-    cancel(error);
-}
-
-void MainResourceLoader::callContinueAfterNavigationPolicy(void* argument, const ResourceRequest& request, PassRefPtr<FormState>, bool shouldContinue)
-{
-    static_cast<MainResourceLoader*>(argument)->continueAfterNavigationPolicy(request, shouldContinue);
-}
-
-void MainResourceLoader::continueAfterNavigationPolicy(const ResourceRequest& request, bool shouldContinue)
-{
-    if (!shouldContinue)
-        stopLoadingForPolicyChange();
-    else if (m_substituteData.isValid()) {
-        // A redirect resulted in loading substitute data.
-        ASSERT(documentLoader()->timing()->redirectCount());
-        handle()->cancel();
-        handleSubstituteDataLoadSoon(request);
-    }
-
-    deref(); // balances ref in willSendRequest
-}
-
-bool MainResourceLoader::isPostOrRedirectAfterPost(const ResourceRequest& newRequest, const ResourceResponse& redirectResponse)
-{
-    if (newRequest.httpMethod() == "POST")
-        return true;
-
-    int status = redirectResponse.httpStatusCode();
-    if (((status >= 301 && status <= 303) || status == 307)
-        && frameLoader()->initialRequest().httpMethod() == "POST")
-        return true;
-    
-    return false;
-}
-
-void MainResourceLoader::addData(const char* data, int length, bool allAtOnce)
-{
-    ResourceLoader::addData(data, length, allAtOnce);
-    documentLoader()->receivedData(data, length);
-}
-
-void MainResourceLoader::willSendRequest(ResourceRequest& newRequest, const ResourceResponse& redirectResponse)
-{
-    // Note that there are no asserts here as there are for the other callbacks. This is due to the
-    // fact that this "callback" is sent when starting every load, and the state of callback
-    // deferrals plays less of a part in this function in preventing the bad behavior deferring 
-    // callbacks is meant to prevent.
-    ASSERT(!newRequest.isNull());
-
-    // The additional processing can do anything including possibly removing the last
-    // reference to this object; one example of this is 3266216.
-    RefPtr<MainResourceLoader> protect(this);
-
-    if (!frameLoader()->checkIfFormActionAllowedByCSP(newRequest.url())) {
-        cancel();
-        return;
-    }
-
-    ASSERT(documentLoader()->timing()->fetchStart());
-    if (!redirectResponse.isNull()) {
-        // If the redirecting url is not allowed to display content from the target origin,
-        // then block the redirect.
-        RefPtr<SecurityOrigin> redirectingOrigin = SecurityOrigin::create(redirectResponse.url());
-        if (!redirectingOrigin->canDisplay(newRequest.url())) {
-            FrameLoader::reportLocalLoadFailed(m_frame.get(), newRequest.url().string());
-            cancel();
-            return;
-        }
-        documentLoader()->timing()->addRedirect(redirectResponse.url(), newRequest.url());
-    }
-
-    // Update cookie policy base URL as URL changes, except for subframes, which use the
-    // URL of the main frame which doesn't change when we redirect.
-    if (frameLoader()->isLoadingMainFrame())
-        newRequest.setFirstPartyForCookies(newRequest.url());
-
-    // If we're fielding a redirect in response to a POST, force a load from origin, since
-    // this is a common site technique to return to a page viewing some data that the POST
-    // just modified.
-    // Also, POST requests always load from origin, but this does not affect subresources.
-    if (newRequest.cachePolicy() == UseProtocolCachePolicy && isPostOrRedirectAfterPost(newRequest, redirectResponse))
-        newRequest.setCachePolicy(ReloadIgnoringCacheData);
-
-    Frame* top = m_frame->tree()->top();
-    if (top != m_frame) {
-        if (!frameLoader()->mixedContentChecker()->canDisplayInsecureContent(top->document()->securityOrigin(), newRequest.url())) {
-            cancel();
-            return;
-        }
-    }
-
-    ResourceLoader::willSendRequest(newRequest, redirectResponse);
-
-    // Don't set this on the first request. It is set when the main load was started.
-    m_documentLoader->setRequest(newRequest);
-
-    if (!redirectResponse.isNull()) {
-        // We checked application cache for initial URL, now we need to check it for redirected one.
-        ASSERT(!m_substituteData.isValid());
-        documentLoader()->applicationCacheHost()->maybeLoadMainResourceForRedirect(newRequest, m_substituteData);
-    }
-
-    // FIXME: Ideally we'd stop the I/O until we hear back from the navigation policy delegate
-    // listener. But there's no way to do that in practice. So instead we cancel later if the
-    // listener tells us to. In practice that means the navigation policy needs to be decided
-    // synchronously for these redirect cases.
-    if (!redirectResponse.isNull()) {
-        ref(); // balanced by deref in continueAfterNavigationPolicy
-        frameLoader()->policyChecker()->checkNavigationPolicy(newRequest, callContinueAfterNavigationPolicy, this);
-    }
-}
-
-void MainResourceLoader::continueAfterContentPolicy(PolicyAction contentPolicy, const ResourceResponse& r)
-{
-    KURL url = request().url();
-    const String& mimeType = r.mimeType();
-    
-    switch (contentPolicy) {
-    case PolicyUse: {
-        // Prevent remote web archives from loading because they can claim to be from any domain and thus avoid cross-domain security checks (4120255).
-        bool isRemoteWebArchive = (equalIgnoringCase("application/x-webarchive", mimeType)
-#if PLATFORM(GTK)
-                                   || equalIgnoringCase("message/rfc822", mimeType)
-#endif
-                                   || equalIgnoringCase("multipart/related", mimeType))
-            && !m_substituteData.isValid() && !SchemeRegistry::shouldTreatURLSchemeAsLocal(url.protocol());
-        if (!frameLoader()->client()->canShowMIMEType(mimeType) || isRemoteWebArchive) {
-            frameLoader()->policyChecker()->cannotShowMIMEType(r);
-            // Check reachedTerminalState since the load may have already been canceled inside of _handleUnimplementablePolicyWithErrorCode::.
-            if (!reachedTerminalState())
-                stopLoadingForPolicyChange();
-            return;
-        }
-        break;
-    }
-
-    case PolicyDownload: {
-        // m_handle can be null, e.g. when loading a substitute resource from application cache.
-        if (!m_handle) {
-            receivedError(cannotShowURLError());
-            return;
-        }
-        InspectorInstrumentation::continueWithPolicyDownload(m_frame.get(), documentLoader(), identifier(), r);
-
-        // When starting the request, we didn't know that it would result in download and not navigation. Now we know that main document URL didn't change.
-        // Download may use this knowledge for purposes unrelated to cookies, notably for setting file quarantine data.
-        ResourceRequest request = this->request();
-        frameLoader()->setOriginalURLForDownloadRequest(request);
-
-        frameLoader()->client()->download(m_handle.get(), request, r);
-
-        // It might have gone missing
-        if (frameLoader())
-            receivedError(interruptedForPolicyChangeError());
-        return;
-    }
-    case PolicyIgnore:
-        InspectorInstrumentation::continueWithPolicyIgnore(m_frame.get(), documentLoader(), identifier(), r);
-        stopLoadingForPolicyChange();
-        return;
-    
-    default:
-        ASSERT_NOT_REACHED();
-    }
-
-    RefPtr<MainResourceLoader> protect(this);
-
-    if (r.isHTTP()) {
-        int status = r.httpStatusCode();
-        if (status < 200 || status >= 300) {
-            bool hostedByObject = frameLoader()->isHostedByObjectElement();
-
-            frameLoader()->handleFallbackContent();
-            // object elements are no longer rendered after we fallback, so don't
-            // keep trying to process data from their load
-
-            if (hostedByObject)
-                cancel();
-        }
-    }
-
-    // we may have cancelled this load as part of switching to fallback content
-    if (!reachedTerminalState())
-        ResourceLoader::didReceiveResponse(r);
-
-    if (frameLoader() && !frameLoader()->activeDocumentLoader()->isStopping() && m_substituteData.isValid()) {
-        if (m_substituteData.content()->size())
-            didReceiveData(m_substituteData.content()->data(), m_substituteData.content()->size(), m_substituteData.content()->size(), true);
-        if (frameLoader() && !frameLoader()->activeDocumentLoader()->isStopping()) 
-            didFinishLoading(0);
-    }
-}
-
-void MainResourceLoader::callContinueAfterContentPolicy(void* argument, PolicyAction policy)
-{
-    static_cast<MainResourceLoader*>(argument)->continueAfterContentPolicy(policy);
-}
-
-void MainResourceLoader::continueAfterContentPolicy(PolicyAction policy)
-{
-    ASSERT(m_waitingForContentPolicy);
-    m_waitingForContentPolicy = false;
-    if (frameLoader() && !frameLoader()->activeDocumentLoader()->isStopping())
-        continueAfterContentPolicy(policy, m_response);
-    deref(); // balances ref in didReceiveResponse
-}
-
-void MainResourceLoader::didReceiveResponse(const ResourceResponse& r)
-{
-    if (documentLoader()->applicationCacheHost()->maybeLoadFallbackForMainResponse(request(), r))
-        return;
-
-    DEFINE_STATIC_LOCAL(AtomicString, xFrameOptionHeader, ("x-frame-options", AtomicString::ConstructFromLiteral));
-    HTTPHeaderMap::const_iterator it = r.httpHeaderFields().find(xFrameOptionHeader);
-    if (it != r.httpHeaderFields().end()) {
-        String content = it->value;
-        if (m_frame->loader()->shouldInterruptLoadForXFrameOptions(content, r.url(), identifier())) {
-            InspectorInstrumentation::continueAfterXFrameOptionsDenied(m_frame.get(), documentLoader(), identifier(), r);
-            String message = "Refused to display '" + r.url().string() + "' in a frame because it set 'X-Frame-Options' to '" + content + "'.";
-            m_frame->document()->addConsoleMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, message, r.url().string(), 0, 0, identifier());
-
-            cancel();
-            return;
-        }
-    }
-
-    // There is a bug in CFNetwork where callbacks can be dispatched even when loads are deferred.
-    // See <rdar://problem/6304600> for more details.
-#if !USE(CF)
-    ASSERT(!defersLoading());
-#endif
-
-    if (m_loadingMultipartContent) {
-        m_documentLoader->setupForReplace();
-        clearResourceData();
-    }
-    
-    if (r.isMultipart())
-        m_loadingMultipartContent = true;
-        
-    // The additional processing can do anything including possibly removing the last
-    // reference to this object; one example of this is 3266216.
-    RefPtr<MainResourceLoader> protect(this);
-
-    m_documentLoader->setResponse(r);
-
-    m_response = r;
-
-    ASSERT(!m_waitingForContentPolicy);
-    m_waitingForContentPolicy = true;
-    ref(); // balanced by deref in continueAfterContentPolicy and didCancel
-
-    ASSERT(frameLoader()->activeDocumentLoader());
-
-    // Always show content with valid substitute data.
-    if (frameLoader()->activeDocumentLoader()->substituteData().isValid()) {
-        callContinueAfterContentPolicy(this, PolicyUse);
-        return;
-    }
-
-#if ENABLE(FTPDIR)
-    // Respect the hidden FTP Directory Listing pref so it can be tested even if the policy delegate might otherwise disallow it
-    Settings* settings = m_frame->settings();
-    if (settings && settings->forceFTPDirectoryListings() && m_response.mimeType() == "application/x-ftp-directory") {
-        callContinueAfterContentPolicy(this, PolicyUse);
-        return;
-    }
-#endif
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (r.url().protocolIs("https") && wkFilterIsManagedSession())
-        m_filter = wkFilterCreateInstance(r.nsURLResponse());
-#endif
-
-    frameLoader()->policyChecker()->checkContentPolicy(m_response, callContinueAfterContentPolicy, this);
-}
-
-void MainResourceLoader::didReceiveData(const char* data, int length, long long encodedDataLength, bool allAtOnce)
-{
-    ASSERT(data);
-    ASSERT(length != 0);
-
-    ASSERT(!m_response.isNull());
-
-#if USE(CFNETWORK) || PLATFORM(MAC)
-    // Workaround for <rdar://problem/6060782>
-    if (m_response.isNull()) {
-        m_response = ResourceResponse(KURL(), "text/html", 0, String(), String());
-        if (DocumentLoader* documentLoader = frameLoader()->activeDocumentLoader())
-            documentLoader->setResponse(m_response);
-    }
-#endif
-
-    // There is a bug in CFNetwork where callbacks can be dispatched even when loads are deferred.
-    // See <rdar://problem/6304600> for more details.
-#if !USE(CF)
-    ASSERT(!defersLoading());
-#endif
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (m_filter) {
-        ASSERT(!wkFilterWasBlocked(m_filter));
-        const char* blockedData = wkFilterAddData(m_filter, data, &length);
-        // If we don't have blockedData, that means we're still accumulating data
-        if (!blockedData) {
-            // Transition to committed state.
-            ResourceLoader::didReceiveData("", 0, 0, false);
-            return;
-        }
-
-        data = blockedData;
-        encodedDataLength = -1;
-    }
-#endif
-
-    documentLoader()->applicationCacheHost()->mainResourceDataReceived(data, length, encodedDataLength, allAtOnce);
-
-    // The additional processing can do anything including possibly removing the last
-    // reference to this object; one example of this is 3266216.
-    RefPtr<MainResourceLoader> protect(this);
-
-    m_timeOfLastDataReceived = monotonicallyIncreasingTime();
-
-    ResourceLoader::didReceiveData(data, length, encodedDataLength, allAtOnce);
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (WebFilterEvaluator *filter = m_filter) {
-        // If we got here, it means we know if we were blocked or not. If we were blocked, we're
-        // done loading the page altogether. Either way, we don't need the filter anymore.
-
-        // Remove this->m_filter early so didFinishLoading doesn't see it.
-        m_filter = 0;
-        if (wkFilterWasBlocked(filter))
-            cancel();
-        wkFilterRelease(filter);
-    }
-#endif
-}
-
-void MainResourceLoader::didFinishLoading(double finishTime)
-{
-    // There is a bug in CFNetwork where callbacks can be dispatched even when loads are deferred.
-    // See <rdar://problem/6304600> for more details.
-#if !USE(CF)
-    ASSERT(!defersLoading() || InspectorInstrumentation::isDebuggerPaused(m_frame.get()));
-#endif
-
-    // The additional processing can do anything including possibly removing the last
-    // reference to this object.
-    RefPtr<MainResourceLoader> protect(this);
-    RefPtr<DocumentLoader> dl = documentLoader();
-
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (m_filter) {
-        int length;
-        const char* data = wkFilterDataComplete(m_filter, &length);
-        WebFilterEvaluator *filter = m_filter;
-        // Remove this->m_filter early so didReceiveData doesn't see it.
-        m_filter = 0;
-        if (data)
-            didReceiveData(data, length, -1, false);
-        wkFilterRelease(filter);
-    }
-#endif
-
-    if (m_loadingMultipartContent)
-        dl->maybeFinishLoadingMultipartContent();
-
-    documentLoader()->timing()->setResponseEnd(finishTime ? finishTime : (m_timeOfLastDataReceived ? m_timeOfLastDataReceived : monotonicallyIncreasingTime()));
-    documentLoader()->finishedLoading();
-    ResourceLoader::didFinishLoading(finishTime);
-
-    dl->applicationCacheHost()->finishedLoadingMainResource();
-}
-
-void MainResourceLoader::didFail(const ResourceError& error)
-{
-#if PLATFORM(MAC) && !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-    if (m_filter) {
-        wkFilterRelease(m_filter);
-        m_filter = 0;
-    }
-#endif
-
-    if (documentLoader()->applicationCacheHost()->maybeLoadFallbackForMainError(request(), error))
-        return;
-
-    // There is a bug in CFNetwork where callbacks can be dispatched even when loads are deferred.
-    // See <rdar://problem/6304600> for more details.
-#if !USE(CF)
-    ASSERT(!defersLoading());
-#endif
-    
-    receivedError(error);
-}
-
-void MainResourceLoader::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::Loader);
-    ResourceLoader::reportMemoryUsage(memoryObjectInfo);
-    info.addMember(m_initialRequest);
-    info.addMember(m_substituteData);
-    info.addMember(m_dataLoadTimer);
-}
-
-void MainResourceLoader::handleSubstituteDataLoadNow(MainResourceLoaderTimer*)
-{
-    RefPtr<MainResourceLoader> protect(this);
-
-    KURL url = m_substituteData.responseURL();
-    if (url.isEmpty())
-        url = m_initialRequest.url();
-
-    // Clear the initial request here so that subsequent entries into the
-    // loader will not think there's still a deferred load left to do.
-    m_initialRequest = ResourceRequest();
-        
-    ResourceResponse response(url, m_substituteData.mimeType(), m_substituteData.content()->size(), m_substituteData.textEncoding(), "");
-    didReceiveResponse(response);
-}
-
-void MainResourceLoader::startDataLoadTimer()
-{
-    m_dataLoadTimer.startOneShot(0);
-
-#if HAVE(RUNLOOP_TIMER)
-    if (SchedulePairHashSet* scheduledPairs = m_frame->page()->scheduledRunLoopPairs())
-        m_dataLoadTimer.schedule(*scheduledPairs);
-#endif
-}
-
-void MainResourceLoader::handleSubstituteDataLoadSoon(const ResourceRequest& r)
-{
-    m_initialRequest = r;
-    
-    if (m_documentLoader->deferMainResourceDataLoad())
-        startDataLoadTimer();
-    else
-        handleSubstituteDataLoadNow(0);
-}
-
-void MainResourceLoader::loadNow(ResourceRequest& r)
-{
-    ASSERT(!m_handle);
-    ASSERT(!defersLoading());
-
-#if USE(PLATFORM_STRATEGIES)
-    platformStrategies()->loaderStrategy()->resourceLoadScheduler()->addMainResourceLoad(this);
-#else
-    resourceLoadScheduler()->addMainResourceLoad(this);
-#endif
-
-    if (m_substituteData.isValid())
-        handleSubstituteDataLoadSoon(r);
-    else
-        m_handle = ResourceHandle::create(m_frame->loader()->networkingContext(), r, this, false, true);
-
-    return;
-}
-
-void MainResourceLoader::load(const ResourceRequest& r, const SubstituteData& substituteData)
-{
-    ASSERT(!m_handle);
-
-    // It appears that it is possible for this load to be cancelled and derefenced by the DocumentLoader
-    // in willSendRequest() if loadNow() is called.
-    RefPtr<MainResourceLoader> protect(this);
-
-    m_substituteData = substituteData;
-
-    ASSERT(documentLoader()->timing()->navigationStart());
-    ASSERT(!documentLoader()->timing()->fetchStart());
-    documentLoader()->timing()->markFetchStart();
-    ResourceRequest request(r);
-
-    // Send this synthetic delegate callback since clients expect it, and
-    // we no longer send the callback from within NSURLConnection for
-    // initial requests.
-    willSendRequest(request, ResourceResponse());
-    ASSERT(!deletionHasBegun());
-
-    // <rdar://problem/4801066>
-    // willSendRequest() is liable to make the call to frameLoader() return null, so we need to check that here
-    if (!frameLoader() || request.isNull()) {
-        if (!reachedTerminalState())
-            releaseResources();
-        return;
-    }
-
-    documentLoader()->applicationCacheHost()->maybeLoadMainResource(request, m_substituteData);
-
-    if (defersLoading())
-        m_initialRequest = request;
-    else
-        loadNow(request);
-}
-
-void MainResourceLoader::setDefersLoading(bool defers)
-{
-    ResourceLoader::setDefersLoading(defers);
-
-    if (defers) {
-        if (m_dataLoadTimer.isActive())
-            m_dataLoadTimer.stop();
-    } else {
-        if (m_initialRequest.isNull())
-            return;
-
-        ResourceRequest initialRequest(m_initialRequest);
-        m_initialRequest = ResourceRequest();
-        loadNow(initialRequest);
-    }
-}
-
-}