Change WebViewGetResourceLoadDelegateImplementations and WebViewGetFrameLoadDelegateImplementations
        to return a pointer to the implementation struct instead of a copy of the struct. This changes
        all of the callers to dereference the pointer to access the struct fields.

        * Plugins/WebNullPluginView.mm:
        (-[WebNullPluginView reportFailure]):
        * WebCoreSupport/WebFrameBridge.mm:
        * WebCoreSupport/WebFrameLoaderClient.mm:
        (WebFrameLoaderClient::dispatchDidLoadResourceFromMemoryCache):
        (WebFrameLoaderClient::assignIdentifierToInitialRequest):
        (WebFrameLoaderClient::dispatchWillSendRequest):
        (WebFrameLoaderClient::dispatchDidReceiveAuthenticationChallenge):
        (WebFrameLoaderClient::dispatchDidCancelAuthenticationChallenge):
        (WebFrameLoaderClient::dispatchDidReceiveResponse):
        (WebFrameLoaderClient::willCacheResponse):
        (WebFrameLoaderClient::dispatchDidReceiveContentLength):
        (WebFrameLoaderClient::dispatchDidFinishLoading):
        (WebFrameLoaderClient::dispatchDidFailLoading):
        (WebFrameLoaderClient::dispatchDidHandleOnloadEvents):
        (WebFrameLoaderClient::dispatchDidReceiveServerRedirectForProvisionalLoad):
        (WebFrameLoaderClient::dispatchDidCancelClientRedirect):
        (WebFrameLoaderClient::dispatchWillPerformClientRedirect):
        (WebFrameLoaderClient::dispatchDidChangeLocationWithinPage):
        (WebFrameLoaderClient::dispatchWillClose):
        (WebFrameLoaderClient::dispatchDidStartProvisionalLoad):
        (WebFrameLoaderClient::dispatchDidReceiveTitle):
        (WebFrameLoaderClient::dispatchDidCommitLoad):
        (WebFrameLoaderClient::dispatchDidFailProvisionalLoad):
        (WebFrameLoaderClient::dispatchDidFailLoad):
        (WebFrameLoaderClient::dispatchDidFinishDocumentLoad):
        (WebFrameLoaderClient::dispatchDidFinishLoad):
        (WebFrameLoaderClient::dispatchDidFirstLayout):
        * WebView/WebView.mm:
        (WebViewGetResourceLoadDelegateImplementations):
        (WebViewGetFrameLoadDelegateImplementations):
        (-[WebView _dispatchDidReceiveIconFromWebFrame:]):
        * WebView/WebViewInternal.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@28365 268f45cc-cd09-0410-ab3c-d52691b4dbfc