Move accessibility settings to their own package

Change-Id: I5822bf4a81f5ade4ee0649ed30c2daa40d7e8fe2

src/com/android/settings/accessibility/SettingsContentObserver.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package com.android.settings.accessibility;
+
+import android.content.ContentResolver;
+import android.database.ContentObserver;
+import android.net.Uri;
+import android.os.Handler;
+import android.provider.Settings;
+
+abstract class SettingsContentObserver extends ContentObserver {
+    public SettingsContentObserver(Handler handler) {
+        super(handler);
+    }
+
+    public void register(ContentResolver contentResolver) {
+        contentResolver.registerContentObserver(Settings.Secure.getUriFor(
+                Settings.Secure.ACCESSIBILITY_ENABLED), false, this);
+        contentResolver.registerContentObserver(Settings.Secure.getUriFor(
+                Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES), false, this);
+    }
+
+    public void unregister(ContentResolver contentResolver) {
+        contentResolver.unregisterContentObserver(this);
+    }
+
+    @Override
+    public abstract void onChange(boolean selfChange, Uri uri);
+}