temporary revert for chat webview xml

ABVJE_UI_Android/res/layout/chat_webview.xml

@@ -11,7 +11,7 @@
         android:layout_height="0dp"
         android:layout_weight="1"
         android:orientation="vertical" >
-        <jp.agentec.abook.abv.ui.home.view.ChatWebView
+        <WebView
             android:id="@+id/chatWebview"
             android:layout_width="match_parent"
             android:layout_height="match_parent" />