Remove RingtoneManager.*SyncFromParent APIs

These operations can be done already if the caller has
WRITE_SECURE_SETTINGS_PERMISSION, and the only approved callers are
settings apps which have that permission. We don't want anyone else
to bypass the permission check and turn off parent sounds sync.

Test: atest SettingsRoboTests
Bug: 204555055
Change-Id: I47956428f5363affef29af9dbe3d3dde21c5a392

media/java/android/media/IAudioService.aidl

@@ -268,8 +268,6 @@ interface IAudioService {
 
     List<AudioPlaybackConfiguration> getActivePlaybackConfigurations();
 
-    void disableRingtoneSync(in int userId);
-
     int getFocusRampTimeMs(in int focusGain, in AudioAttributes attr);
 
     int dispatchFocusChange(in AudioFocusInfo afi, in int focusChange,

media/java/android/media/RingtoneManager.java

@@ -748,32 +748,6 @@ public class RingtoneManager {
         return null;
     }
 
-    /**
-     * Disables Settings.System.SYNC_PARENT_SOUNDS.
-     *
-     * @hide
-     */
-    public static void disableSyncFromParent(Context userContext) {
-        IBinder b = ServiceManager.getService(Context.AUDIO_SERVICE);
-        IAudioService audioService = IAudioService.Stub.asInterface(b);
-        try {
-            audioService.disableRingtoneSync(userContext.getUserId());
-        } catch (RemoteException e) {
-            Log.e(TAG, "Unable to disable ringtone sync.");
-        }
-    }
-
-    /**
-     * Enables Settings.System.SYNC_PARENT_SOUNDS for the content's user
-     *
-     * @hide
-     */
-    @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
-    public static void enableSyncFromParent(Context userContext) {
-        Settings.Secure.putIntForUser(userContext.getContentResolver(),
-                Settings.Secure.SYNC_PARENT_SOUNDS, 1 /* true */, userContext.getUserId());
-    }
-
     /**
      * Gets the current default sound's {@link Uri}. This will give the actual
      * sound {@link Uri}, instead of using this, most clients can use
@@ -818,11 +792,6 @@ public class RingtoneManager {
         if (setting == null) return;
 
         final ContentResolver resolver = context.getContentResolver();
-        if (Settings.Secure.getIntForUser(resolver, Settings.Secure.SYNC_PARENT_SOUNDS, 0,
-                    context.getUserId()) == 1) {
-            // Parent sound override is enabled. Disable it using the audio service.
-            disableSyncFromParent(context);
-        }
         if(!isInternalRingtoneUri(ringtoneUri)) {
             ringtoneUri = ContentProvider.maybeAddUserId(ringtoneUri, context.getUserId());
         }

services/core/java/com/android/server/audio/AudioService.java

@@ -10023,22 +10023,6 @@ public class AudioService extends IAudioService.Stub
         mRecordMonitor.releaseRecorder(riid);
     }
 
-    public void disableRingtoneSync(final int userId) {
-        final int callingUserId = UserHandle.getCallingUserId();
-        if (callingUserId != userId) {
-            mContext.enforceCallingOrSelfPermission(Manifest.permission.INTERACT_ACROSS_USERS_FULL,
-                    "disable sound settings syncing for another profile");
-        }
-        final long token = Binder.clearCallingIdentity();
-        try {
-            // Disable the sync setting so the profile uses its own sound settings.
-            Settings.Secure.putIntForUser(mContentResolver, Settings.Secure.SYNC_PARENT_SOUNDS,
-                    0 /* false */, userId);
-        } finally {
-            Binder.restoreCallingIdentity(token);
-        }
-    }
-
     //======================
     // Audio playback notification
     //======================