WebCore:

WebCore:

        Reviewed by Darin, Maciej.

        Removed many uses of NSString *.
        Moved a few methods from WebCoreFrameBridge to FrameLoader, replacing
        stringByCollapsingNonPrintingCharacters with a c++ equivalent.

        PLT says no performance regression.

        * WebCore.exp:
        * bridge/mac/WebCoreFrameBridge.mm:
        (-[WebCoreFrameBridge receivedData:textEncodingName:]):
        * loader/mac/FrameLoader.h:
        * loader/mac/FrameLoader.mm:
        (WebCore::FrameLoader::setupForReplaceByMIMEType):
        (WebCore::FrameLoader::load):
        (WebCore::FrameLoader::canShowMIMEType):
        (WebCore::FrameLoader::representationExistsForURLScheme):
        (WebCore::FrameLoader::generatedMIMETypeForURLScheme):
        (WebCore::FrameLoader::checkContentPolicy):
        (WebCore::FrameLoader::reloadAllowingStaleData):
        (WebCore::FrameLoader::invalidatePendingPolicyDecision):
        (WebCore::FrameLoader::checkNewWindowPolicy):
        (WebCore::FrameLoader::continueAfterNewWindowPolicy):
        (WebCore::FrameLoader::transitionToCommitted):
        (WebCore::FrameLoader::continueLoadRequestAfterNewWindowPolicy):
        (WebCore::FrameLoader::post):
        * loader/mac/WebDocumentLoader.h:
        * loader/mac/WebDocumentLoader.mm:
        (WebCore::DocumentLoader::doesProgressiveLoad):
        (WebCore::DocumentLoader::setupForReplaceByMIMEType):
        (WebCore::DocumentLoader::title):
        (WebCore::DocumentLoader::setOverrideEncoding):
        (WebCore::DocumentLoader::overrideEncoding):
        (WebCore::DocumentLoader::setTitle):
        * loader/mac/WebFrameLoaderClient.h:
        * loader/mac/WebMainResourceLoader.mm:
        (WebCore::MainResourceLoader::continueAfterContentPolicy):

WebKit:

        Reviewed by Darin, Maciej.

        Removed many uses of NSString * from WebCore.

        Changed a few files to ObjC++ for compatiblity with new WebCore methods
        taking WebCore::Strings as arguments.

        Added a static_cast to make the c++ compiler happy.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@17352 268f45cc-cd09-0410-ab3c-d52691b4dbfc