Fix testCameraModes() for Galaxy Nexus.

		String new_scene_mode = mPreview.getCameraController().getSceneMode();

		Log.d(TAG, "scene_mode is now: " + new_scene_mode);

	    assertTrue( new_scene_mode.equals(scene_mode) );

	    // Now set back to default - important as on some devices, non-default scene modes may override e.g. what

		// white balance mode can be set.

		// This was needed to fix the test testCameraModes() on Galaxy Nexus, which started failing in

		// April 2018 for v1.43. Earlier versions (e.g., 1.42) still had the problem despite previously

		// testing fine, so something must have changed on the device?

		settings = PreferenceManager.getDefaultSharedPreferences(mActivity);

		editor = settings.edit();

		editor.putString(PreferenceKeys.SceneModePreferenceKey, CameraController.SCENE_MODE_DEFAULT);

		editor.apply();

		updateForSettings();

		new_scene_mode = mPreview.getCameraController().getSceneMode();

		Log.d(TAG, "scene_mode is now: " + new_scene_mode);

	    assertTrue( new_scene_mode.equals(CameraController.SCENE_MODE_DEFAULT) );

	}

	private void subTestColorEffect() {