Reviewed by Beth.

    Reviewed by Beth.

        - remove many (but not all) WebKit dependencies from WebNetscapePlugInStreamLoader (it still
        depends on WebNetscapePluginStream).

        * Loader/WebFrameLoader.h:
        * Loader/WebFrameLoader.m:
        (-[WebFrameLoader fileDoesNotExistErrorWithResponse:]):
        * Loader/WebNetscapePlugInStreamLoader.h:
        * Loader/WebNetscapePlugInStreamLoader.m:
        (-[WebNetscapePlugInStreamLoader initWithStream:frameLoader:]):
        (-[WebNetscapePlugInStreamLoader releaseResources]):
        (-[WebNetscapePlugInStreamLoader didReceiveResponse:]):
        * Plugins/WebNetscapePluginStream.m:
        (-[WebNetscapePluginStream initWithRequest:pluginPointer:notifyData:sendNotification:]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@15869 268f45cc-cd09-0410-ab3c-d52691b4dbfc