Update geolocation prompt

 Bug: 4975201
 Cleanup and Holo'd

Change-Id: Ia4c31f411fa6fd2f3fd05ce92f4f4b8592cc3520
diff --git a/res/layout/custom_screen.xml b/res/layout/custom_screen.xml
index 2105501..7a22530 100644
--- a/res/layout/custom_screen.xml
+++ b/res/layout/custom_screen.xml
@@ -14,7 +14,8 @@
      limitations under the License.
 -->
 
-<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android">
+<merge
+    xmlns:android="http://schemas.android.com/apk/res/android">
     <FrameLayout android:id="@+id/fullscreen_custom_content"
         android:visibility="gone"
         android:background="@color/black"
@@ -36,5 +37,5 @@
             android:layout_height="match_parent"
         />
     </LinearLayout>
-</FrameLayout>
+</merge>