Reviewed by Mark.

        - made data loading cross-platform
        - fixed <rdar://problem/4910106>

        * WebCore.exp:
        * WebCore.xcodeproj/project.pbxproj:
        * loader/CachedResource.cpp:
        * loader/CachedResource.h:
        * loader/DocLoader.cpp:
        (WebCore::DocLoader::requestResource):
        * loader/DocumentLoader.cpp:
        (WebCore::DocumentLoader::DocumentLoader):
        (WebCore::DocumentLoader::setRequest):
        (WebCore::DocumentLoader::urlForHistory):
        (WebCore::DocumentLoader::unreachableURL):
        * loader/DocumentLoader.h:
        (WebCore::DocumentLoader::substituteData):
        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::load):
        (WebCore::FrameLoader::shouldReloadToHandleUnreachableURL):
        (WebCore::FrameLoader::reloadAllowingStaleData):
        (WebCore::FrameLoader::reload):
        (WebCore::FrameLoader::commitProvisionalLoad):
        (WebCore::FrameLoader::startLoadingMainResource):
        (WebCore::FrameLoader::startLoading):
        (WebCore::FrameLoader::checkNavigationPolicy):
        * loader/FrameLoader.h:
        * loader/FrameLoaderClient.h:
        * loader/MainResourceLoader.cpp:
        (WebCore::MainResourceLoader::willSendRequest):
        (WebCore::MainResourceLoader::continueAfterContentPolicy):
        (WebCore::MainResourceLoader::handleEmptyLoad):
        (WebCore::MainResourceLoader::handleDataLoad):
        (WebCore::MainResourceLoader::loadNow):
        (WebCore::MainResourceLoader::load):
        * loader/MainResourceLoader.h:
        * loader/mac/DocumentLoaderMac.mm:
        * loader/mac/WebDataProtocol.h: Removed.
        * loader/mac/WebDataProtocol.mm: Removed.
        * loader/qt/DocumentLoaderQt.cpp:
        * platform/graphics/svg/SVGImageEmptyClients.h:
        (WebCore::SVGEmptyFrameLoaderClient::createDocumentLoader):

WebKit:

        Reviewed by Mark.

        - updated for cross-platform data loading support
        
        * WebCoreSupport/WebFrameLoaderClient.h:
        * WebCoreSupport/WebFrameLoaderClient.mm:
        (WebFrameLoaderClient::createDocumentLoader):
        * WebView/WebDataSource.mm:
        (-[WebDataSource initWithRequest:]):
        * WebView/WebDocumentLoaderMac.h:
        * WebView/WebDocumentLoaderMac.mm:
        (WebDocumentLoaderMac::WebDocumentLoaderMac):
        * WebView/WebFrame.mm:
        (-[WebFrame _loadData:MIMEType:textEncodingName:baseURL:unreachableURL:]):
        (-[WebFrame loadData:MIMEType:textEncodingName:baseURL:]):
        (-[WebFrame _loadHTMLString:baseURL:unreachableURL:]):
        (-[WebFrame loadArchive:]):
        * WebView/WebFrameInternal.h:
        * WebView/WebHTMLView.mm:
        (uniqueURLWithRelativePart):
        (-[WebHTMLView _documentFragmentFromPasteboard:inContext:allowPlainText:chosePlainText:]):

WebKitQt:

        Reviewed by Mark.

        - updated for cross-platform data loading support

        * WebCoreSupport/FrameLoaderClientQt.cpp:
        (WebCore::FrameLoaderClientQt::createDocumentLoader):
        * WebCoreSupport/FrameLoaderClientQt.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@19218 268f45cc-cd09-0410-ab3c-d52691b4dbfc