Disable WebUSB chooser service on chrome extension
Disable WebUSB chooser service on chrome extension

This patch added code to disable WebUSB chooser service on chrome
extensions and apps.

BUG=610880

Review-Url: https://codereview.chromium.org/1965153002
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#392808}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk