User management UI: take 2

Single screen user management, also visible on secondary users.
Work in progress, especially with respect to synchronizing with
the Me profile.

Change-Id: Id6e94a85d53356847e4e019c52e3388de9ecb354

res/layout/preference_user_delete_widget.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2012 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<!-- Used by UserPreference to show the trash icon -->
+<LinearLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
+    <View
+        android:layout_width="2dip"
+        android:layout_height="match_parent"
+        android:layout_marginTop="5dip"
+        android:layout_marginBottom="5dip"
+        android:background="@android:drawable/divider_horizontal_dark" />
+    <ImageView
+        android:id="@+id/trash_user"
+        android:layout_width="wrap_content"
+        android:layout_height="fill_parent"
+        android:paddingStart="15dip"
+        android:paddingEnd="?android:attr/scrollbarSize"
+        android:src="@drawable/ic_menu_delete_holo_dark"
+        android:contentDescription="@string/user_delete_user_description"
+        android:layout_gravity="center"
+        android:clickable="true"
+        android:focusable="true"
+        android:background="?android:attr/selectableItemBackground" />
+</LinearLayout>