GitLab

Removed the title to make the tabs start at the very top of the dialog.

Has 3 tabs: Summary, Permissions and Manage
- The Summary tab displays the app's icon, name, version and description.
- The Permissions tab displays the app's permissions as a scrollable list
- The Manage tab is currently empty.

BUG=266739

Review URL: https://codereview.chromium.org/180723010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@255880 0039d316-1c4b-4281-b951-d872f2087c98