Implement support for notification.vibrate
This patch implements support for notification.vibrate, which allow a
Web developer to set the "vibrate" key when creating a notification,
that will set up a vibration.
This operation depends on the device capability.
Currently this only works on Android.
The Web Notification specification:
https://notifications.spec.whatwg.org/#dom-notificationoptions-vibrate
BUG=442132
Review URL: https://codereview.chromium.org/
1054573002
Cr-Commit-Position: refs/heads/master@{#329082}