https://bugs.webkit.org/show_bug.cgi?id=120092

Reviewed by Anders Carlsson.

Revise WebFrame implementation on Windows to no longer subclass from
WebFrameLoaderClient, instead using a fully-functional WebFrameLoaderClient
as a helper object to perform the tasks, as is done in the other
ports. This is a step towards completing
https://bugs.webkit.org/show_bug.cgi?id=119964.

* WebCoreSupport/WebFrameLoaderClient.cpp: Add a new 'private data'
object to house the policy delegate and function.
(WebFrameLoaderClient::WebFramePolicyListenerPrivate::WebFramePolicyListenerPrivate):
Create the new private data object.
(WebFrameLoaderClient::WebFramePolicyListenerPrivate::~WebFramePolicyListenerPrivate):
Destroy the new private data object.
(WebFrameLoaderClient::WebFrameLoaderClient): Moved from WebFrame.cpp
(WebFrameLoaderClient::frameLoaderDestroyed): Ditto
(WebFrameLoaderClient::makeRepresentation): Ditto
(WebFrameLoaderClient::forceLayoutForNonHTML): Ditto
(WebFrameLoaderClient::setCopiesOnScroll): Ditto
(WebFrameLoaderClient::detachedFromParent2): Ditto
(WebFrameLoaderClient::detachedFromParent3): Ditto
(WebFrameLoaderClient::convertMainResourceLoadToDownload): Ditto
(WebFrameLoaderClient::dispatchDidLoadResourceFromMemoryCache): Ditto
(WebFrameLoaderClient::dispatchDidFailProvisionalLoad): Ditto
(WebFrameLoaderClient::dispatchDidFailLoad): Ditto
(WebFrameLoaderClient::dispatchDecidePolicyForResponse): Ditto
(WebFrameLoaderClient::dispatchDecidePolicyForNewWindowAction): Ditto
(WebFrameLoaderClient::dispatchDecidePolicyForNavigationAction): Ditto
(WebFrameLoaderClient::dispatchUnableToImplementPolicy): Ditto
(WebFrameLoaderClient::dispatchWillSendSubmitEvent): Ditto
(WebFrameLoaderClient::dispatchWillSubmitForm): Ditto
(WebFrameLoaderClient::startDownload): Ditto
(WebFrameLoaderClient::willChangeTitle): Ditto
(WebFrameLoaderClient::didChangeTitle): Ditto
(WebFrameLoaderClient::cancelledError): Ditto
(WebFrameLoaderClient::blockedError): Ditto
(WebFrameLoaderClient::cannotShowURLError): Ditto
(WebFrameLoaderClient::interruptedForPolicyChangeError): Ditto
(WebFrameLoaderClient::cannotShowMIMETypeError): Ditto
(WebFrameLoaderClient::fileDoesNotExistError): Ditto
(WebFrameLoaderClient::pluginWillHandleLoadError): Ditto
(WebFrameLoaderClient::shouldFallBack): Ditto
(WebFrameLoaderClient::canHandleRequest): Ditto
(WebFrameLoaderClient::canShowMIMEType): Ditto
(WebFrameLoaderClient::canShowMIMETypeAsHTML): Ditto
(WebFrameLoaderClient::representationExistsForURLScheme): Ditto
(WebFrameLoaderClient::generatedMIMETypeForURLScheme): Ditto
(WebFrameLoaderClient::frameLoadCompleted): Ditto
(WebFrameLoaderClient::saveViewStateToItem): Ditto
(WebFrameLoaderClient::restoreViewState): Ditto
(WebFrameLoaderClient::provisionalLoadStarted): Ditto
(WebFrameLoaderClient::didFinishLoad): Ditto
(WebFrameLoaderClient::prepareForDataSourceReplacement): Ditto
(WebFrameLoaderClient::userAgent): Ditto
(WebFrameLoaderClient::objectContentType): Ditto
(WebFrameLoaderClient::createJavaAppletWidget): Ditto
(WebFrameLoaderClient::overrideMediaType): Ditto
(WebFrameLoaderClient::documentElementAvailable): Ditto
(WebFrameLoaderClient::dispatchDidClearWindowObjectInWorld): Ditto
(WebFrameLoaderClient::registerForIconNotification): Ditto
(WebFrameLoaderClient::didPerformFirstNavigation): Ditto
(WebFrameLoaderClient::createNetworkingContext): Ditto
(WebFrameLoaderClient::shouldAlwaysUsePluginDocument): Ditto
(WebFrameLoaderClient::revertToProvisionalState): Ditto
(WebFrameLoaderClient::setMainFrameDocumentReady): Ditto
(WebFrameLoaderClient::cancelPolicyCheck): Ditto
(WebFrameLoaderClient::setUpPolicyListener): Ditto
(WebFrameLoaderClient::receivedPolicyDecision): Ditto
* WebCoreSupport/WebFrameLoaderClient.h:
(WebFrameLoaderClient::webFrame): Add accessor method
* WebDataSource.cpp:
(WebDataSource::representation): Loader client is now
a WebFrameLoaderClient (not a WebFrame).
(WebDataSource::webFrame): Ditto
* WebElementPropertyBag.cpp:
(WebElementPropertyBag::Read): Loader client is now
a WebFrameLoaderClient (not a WebFrame)
* WebFrame.cpp:
(kit): Revise for WebFrameLoaderClient use.
(WebFrame::WebFramePrivate::WebFramePrivate): Remove
WebFramePolicyListener and FramePolicyFunction, since
they are no longer needed here. They were moved to
the WebFrameLoaderClient object.
(WebFrame::WebFrame): No longer inheriting from
WebFramePolicyListener.
(WebFrame::init): Frame::create now needs to be supplied
with a new WebFramePolicyListener, rather than 'this'
* WebFrame.h:
* WebFramePolicyListener.cpp:
(WebFramePolicyListener::receivedPolicyDecision): Loader
client is now a WebFramePolicyClient, not a WebFrame.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154508 268f45cc-cd09-0410-ab3c-d52691b4dbfc