On Linux, the App Launcher is now shown in the taskbar.

Widget::InitParams: Added override_show_in_taskbar value to force popup
and bubble windows (including the App Launcher) to appear in the taskbar
when they otherwise would not.

BUG=332007
TEST=Launch App Launcher. It should appear in the Unity launcher.

Review URL: https://codereview.chromium.org/122353003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243585 0039d316-1c4b-4281-b951-d872f2087c98
Add unit tests to ensure that certain types of extensions are not disabled by Profile Reset.

BUG=None

Review URL: https://codereview.chromium.org/128223003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243587 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243587