[Nexus 5] app webview will be detected as Tablet

ua: "Mozilla/5.0 (Linux; Android 5.1; Nexus 5 Build/LMY47D) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/39.0.0.0 Mobile Safari/537.36 momoWebView/6.3.1 android/404(Nexus 5;android 5.1;zh_CN;10;netType/1)"

Maybe the last string the app add to ua makes it.
