Disable system alert window permissions on low ram devices

Bug: 63697002
Bug: 117832554
Test: adb am start-activity -a
android.settings.action.MANAGE_OVERLAY_PERMISSION
Change-Id: I44c64001cd07fd4934cdc55f455384cebd5c9cfb

res/layout/manage_applications_apps_unsupported.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 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.
+-->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical">
+
+        <TextView
+            android:id="@+id/empty_header"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/disabled_feature"
+            android:textAppearance="?android:attr/textAppearanceLarge"/>
+
+        <TextView
+            android:id="@+id/empty_body"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/disabled_feature_reason_slow_down_phone"
+            android:textAppearance="?android:attr/textAppearanceSmall"/>
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+            <FrameLayout
+                android:id="@+id/pinned_header"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                settings:layout_scrollFlags="scroll|enterAlways"/>
+        </com.google.android.material.appbar.AppBarLayout>
+
+    </LinearLayout>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>