- remove use of WebDataSource from WebLoader and subclasses, just have them talk to the
        WebFrameLoader instead. 
        
        For now this is done by forarding all the calls.

        * Misc/WebIconLoader.m:
        (-[WebIconLoader didFinishLoading]):
        * Plugins/WebNetscapePluginStream.m:
        (-[WebNetscapePluginStream initWithRequest:pluginPointer:notifyData:sendNotification:]):
        (-[WebNetscapePluginStream start]):
        (-[WebNetscapePlugInStreamLoader didFinishLoading]):
        (-[WebNetscapePlugInStreamLoader didFailWithError:]):
        (-[WebNetscapePlugInStreamLoader cancelWithError:]):
        * WebCoreSupport/WebFrameBridge.m:
        (-[WebFrameBridge startLoadingResource:withMethod:URL:customHeaders:]):
        (-[WebFrameBridge startLoadingResource:withMethod:URL:customHeaders:postData:]):
        * WebCoreSupport/WebSubresourceLoader.h:
        * WebCoreSupport/WebSubresourceLoader.m:
        (-[WebSubresourceLoader initWithLoader:frameLoader:]):
        (+[WebSubresourceLoader startLoadingResource:withRequest:customHeaders:referrer:forFrameLoader:]):
        (+[WebSubresourceLoader startLoadingResource:withMethod:URL:customHeaders:referrer:forFrameLoader:]):
        (+[WebSubresourceLoader startLoadingResource:withMethod:URL:customHeaders:postData:referrer:forFrameLoader:]):
        (-[WebSubresourceLoader receivedError:]):
        (-[WebSubresourceLoader signalFinish]):
        (-[WebSubresourceLoader didFailWithError:]):
        (-[WebSubresourceLoader cancel]):
        * WebKit.xcodeproj/project.pbxproj:
        * WebView/WebDataSource.m:
        (-[WebDataSource _updateLoading]):
        (-[WebDataSource textEncodingName]):
        (-[WebDataSource _mainReceivedBytesSoFar:complete:]):
        * WebView/WebFrameLoader.h:
        * WebView/WebFrameLoader.m:
        (-[WebFrameLoader loadIconWithRequest:]):
        (-[WebFrameLoader startLoadingMainResourceWithRequest:identifier:]):
        (-[WebFrameLoader clearIconLoader]):
        (-[WebFrameLoader commitProvisionalLoad]):
        (-[WebFrameLoader activeDataSource]):
        (-[WebFrameLoader _archivedSubresourceForURL:]):
        (-[WebFrameLoader _defersCallbacks]):
        (-[WebFrameLoader _identifierForInitialRequest:]):
        (-[WebFrameLoader _willSendRequest:forResource:redirectResponse:]):
        (-[WebFrameLoader _didReceiveAuthenticationChallenge:forResource:]):
        (-[WebFrameLoader _didCancelAuthenticationChallenge:forResource:]):
        (-[WebFrameLoader _didReceiveResponse:forResource:]):
        (-[WebFrameLoader _didReceiveData:contentLength:forResource:]):
        (-[WebFrameLoader _didFinishLoadingForResource:]):
        (-[WebFrameLoader _didFailLoadingWithError:forResource:]):
        (-[WebFrameLoader _privateBrowsingEnabled]):
        (-[WebFrameLoader _addPlugInStreamLoader:]):
        (-[WebFrameLoader _removePlugInStreamLoader:]):
        (-[WebFrameLoader _finishedLoadingResource]):
        (-[WebFrameLoader _receivedError:]):
        (-[WebFrameLoader _addSubresourceLoader:]):
        (-[WebFrameLoader _removeSubresourceLoader:]):
        (-[WebFrameLoader _originalRequest]):
        (-[WebFrameLoader webFrame]):
        (-[WebFrameLoader _receivedMainResourceError:complete:]):
        (-[WebFrameLoader initialRequest]):
        (-[WebFrameLoader _receivedData:]):
        (-[WebFrameLoader _setRequest:]):
        (-[WebFrameLoader _downloadWithLoadingConnection:request:response:proxy:]):
        (-[WebFrameLoader _handleFallbackContent]):
        (-[WebFrameLoader _isStopping]):
        (-[WebFrameLoader _decidePolicyForMIMEType:decisionListener:]):
        (-[WebFrameLoader _setupForReplaceByMIMEType:]):
        (-[WebFrameLoader _setResponse:]):
        (-[WebFrameLoader _mainReceivedError:complete:]):
        (-[WebFrameLoader _finishedLoading]):
        (-[WebFrameLoader _mainReceivedBytesSoFar:complete:]):
        (-[WebFrameLoader _iconLoaderReceivedPageIcon:]):
        (-[WebFrameLoader _URL]):
        * WebView/WebLoader.h:
        * WebView/WebLoader.m:
        (-[NSURLProtocol releaseResources]):
        (-[NSURLProtocol loadWithRequest:]):
        (-[NSURLProtocol setFrameLoader:]):
        (-[NSURLProtocol frameLoader]):
        (-[NSURLProtocol willSendRequest:redirectResponse:]):
        (-[NSURLProtocol didReceiveAuthenticationChallenge:]):
        (-[NSURLProtocol didCancelAuthenticationChallenge:]):
        (-[NSURLProtocol didReceiveResponse:]):
        (-[NSURLProtocol didReceiveData:lengthReceived:]):
        (-[NSURLProtocol signalFinish]):
        (-[NSURLProtocol didFailWithError:]):
        (-[NSURLProtocol willCacheResponse:]):
        (-[NSURLProtocol cancelWithError:]):
        * WebView/WebMainResourceLoader.h:
        * WebView/WebMainResourceLoader.m:
        (-[WebMainResourceLoader initWithFrameLoader:]):
        (-[WebMainResourceLoader receivedError:]):
        (-[WebMainResourceLoader cancelWithError:]):
        (-[WebMainResourceLoader _isPostOrRedirectAfterPost:redirectResponse:]):
        (-[WebMainResourceLoader addData:]):
        (-[WebMainResourceLoader willSendRequest:redirectResponse:]):
        (-[WebMainResourceLoader continueAfterContentPolicy:response:]):
        (-[WebMainResourceLoader continueAfterContentPolicy:]):
        (-[WebMainResourceLoader checkContentPolicyForResponse:]):
        (-[WebMainResourceLoader didReceiveResponse:]):
        (-[WebMainResourceLoader didReceiveData:lengthReceived:]):
        (-[WebMainResourceLoader didFinishLoading]):
        (-[WebMainResourceLoader didFailWithError:]):
        (-[WebMainResourceLoader loadWithRequestNow:]):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@15784 268f45cc-cd09-0410-ab3c-d52691b4dbfc