Add content/browser/shared_worker/OWNERS.

In this directory, we will implement the browser side code for the SharedWorker in the renderer process.

BUG=327256

Review URL: https://codereview.chromium.org/159123005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250698 0039d316-1c4b-4281-b951-d872f2087c98
[SystemInfo API] Restrict display.onDisplayChanged event only on ChromeOS.

BUG=342731
TEST=manual

Review URL: https://codereview.chromium.org/148493012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250699 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 250699