Move isMediaOutputDisabled() from Utils to LocalMediaManager

- Move isMediaOutputDisabled() from Utils to LocalMediaManager.
  The isMediaOutputDisabled() is used to check whether should
  disable the entry point of media output, it's not a general
  method for Settings. To reduce the usage of Utils.java,
  it's better to let LocalMediaManager handle this method.
- Add test cases.

Bug: 169378895
Test: make -j42 RunSettingsRoboTests
Change-Id: I5dbed2ad4de6dca8105414f8b7d7ce7141e258bd

src/com/android/settings/notification/RemoteVolumeGroupController.java

@@ -131,8 +131,8 @@ public class RemoteVolumeGroupController extends BasePreferenceController implem
             seekBarPreference.setIcon(R.drawable.ic_volume_remote);
             mPreferenceCategory.addPreference(seekBarPreference);
             // Add output indicator
-            final boolean isMediaOutputDisabled = Utils.isMediaOutputDisabled(
-                    mRouterManager, info.getClientPackageName());
+            final boolean isMediaOutputDisabled = mLocalMediaManager.shouldDisableMediaOutput(
+                    info.getClientPackageName());
             final Preference preference = new Preference(mContext);
             preference.setKey(SWITCHER_PREFIX + info.getId());
             preference.setTitle(isMediaOutputDisabled ? appName : outputTitle);