Add dummy view in RadioButtonWith*LayoutTest

Fix the flaky test by adding a dummy view. This helps collecting the
focus when it is cleared in RadioButtonWithEditText. This is however a
short-term solution and should be revisited with a fix on the widget
itself.

For more details see the original crbug.

Change-Id: Ibae61514ffc98c253db4a8bd63498967178d523f
Bug: 1169215
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2644935
Commit-Queue: Wenyu Fu <wenyufu@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846271}

components/browser_ui/widget/android/test/java/res/layout/radio_button_with_description_layout_test.xml

@@ -8,6 +8,14 @@
     android:layout_width="wrap_content"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
+    <!-- Dummy view used to collect focus when RadioButtonWithEditText loses focus.
+     TODO(https://crbug.com/11692150): Remove this. -->
+    <View
+        android:layout_height="1dp"
+        android:layout_width="match_parent"
+        android:focusable="true"
+        android:focusableInTouchMode="true" />
+
     <org.chromium.components.browser_ui.widget.RadioButtonWithDescriptionLayout
         android:id="@+id/test_radio_button_layout"
         android:layout_width="match_parent"