Silence a couple of warnings.

* WebView/WebFrame.mm:
(-[WebFrame _stringByEvaluatingJavaScriptFromString:forceUserGesture:]):
(-[WebFrame _stringByEvaluatingJavaScriptFromString:withGlobalObject:inScriptWorld:]):
* WebView/WebTextCompletionController.mm:
(-[WebTextCompletionController filterKeyDown:]):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@73664 268f45cc-cd09-0410-ab3c-d52691b4dbfc