GitLab

Added EphemeralAppThrottle, which will launch ephemeral apps for
links to Chrome Web Store detail pages instead of opening the page in
the browser. This will only occur if the enable-ephemeral-apps switch
is enabled.

For experimental purposes only. The extension will currently be
installed in Chrome.

BUG=312460

Review URL: https://codereview.chromium.org/51943003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233419 0039d316-1c4b-4281-b951-d872f2087c98