Merge "Play vibration preview when turning on vibration" into qt-dev

am: 1a82d653f7

Change-Id: I7a1d856cdede78d708ecc9601832a0d86bf42e20

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

@@ -128,6 +128,8 @@ public abstract class VibrationPreferenceFragment extends RadioButtonPickerFragm
             // Update vibration intensity setting
             Settings.System.putInt(getContext().getContentResolver(),
                     getVibrationIntensitySetting(), candidate.getIntensity());
+        } else {
+            playVibrationPreview();
         }
     }