Reviewed by Adele.

    Reviewed by Adele.

	- remove use of NSURLRequest and NSUserDefaults SPI

        * History.subproj/WebHistoryItem.m:
        (-[WebHistoryItem _setFormInfoFromRequest:]):
        * Misc.subproj/WebNSURLRequestExtras.h: Added.
        * Misc.subproj/WebNSURLRequestExtras.m: Added.
        (-[NSURLRequest _web_HTTPReferrer]):
        (-[NSURLRequest _web_HTTPContentType]):
        (-[NSMutableURLRequest _web_setHTTPContentType:]):
        (-[NSMutableURLRequest _web_setHTTPReferrer:]):
        (-[NSMutableURLRequest _web_setHTTPUserAgent:]):
        * Misc.subproj/WebNSUserDefaultsExtras.h: Added.
        * Misc.subproj/WebNSUserDefaultsExtras.m: Added.
        (-[NSString _webkit_HTTPStyleLanguageCode]):
        (makeLock):
        (+[NSUserDefaults _ensureAndLockPreferredLanguageLock]):
        (+[NSUserDefaults _webkit_defaultsDidChange]):
        (addDefaultsChangeObserver):
        (+[NSUserDefaults _webkit_addDefaultsChangeObserver]):
        (+[NSUserDefaults _webkit_preferredLanguageCode]):
        * Plugins.subproj/WebBaseNetscapePluginView.m:
        (-[WebBaseNetscapePluginView requestWithURLCString:]):
        * Plugins.subproj/WebNetscapePluginEmbeddedView.m:
        (-[WebNetscapePluginEmbeddedView didStart]):
        * Plugins.subproj/WebNetscapePluginStream.m:
        (-[WebNetscapePluginStream initWithRequest:pluginPointer:notifyData:sendNotification:]):
        * WebCoreSupport.subproj/WebBridge.m:
        (-[WebBridge createWindowWithURL:frameName:]):
        (-[WebBridge syncLoadResourceWithURL:customHeaders:postData:finalURL:responseHeaders:statusCode:]):
        (-[WebBridge incomingReferrer]):
        (-[WebBridge createModalDialogWithURL:]):
        * WebCoreSupport.subproj/WebSubresourceClient.m:
        (+[WebSubresourceClient startLoadingResource:withRequest:customHeaders:referrer:forDataSource:]):
        * WebCoreSupport.subproj/WebViewFactory.m:
        (-[WebViewFactory defaultLanguageCode]):
        * WebKit.pbproj/project.pbxproj:
        * WebView.subproj/WebBaseResourceHandleDelegate.m:
        (-[WebBaseResourceHandleDelegate willSendRequest:redirectResponse:]):
        * WebView.subproj/WebDefaultContextMenuDelegate.m:
        (-[WebDefaultUIDelegate openNewWindowWithURL:element:]):
        * WebView.subproj/WebFrame.m:
        (-[WebFrame _loadItem:withLoadType:]):
        (-[WebFrame _addExtraFieldsToRequest:alwaysFromRequest:]):
        (-[WebFrame _loadURL:referrer:loadType:target:triggeringEvent:form:formValues:]):
        (-[WebFrame _postWithURL:referrer:target:data:contentType:triggeringEvent:form:formValues:]):
        * WebView.subproj/WebMainResourceClient.m:
        * WebView.subproj/WebView.m:
        (-[WebView _cachedResponseForURL:]):
        (-[WebView userAgentForURL:]):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@9263 268f45cc-cd09-0410-ab3c-d52691b4dbfc