Implement --app-launcher to register the Chrome App Launcher in Add/Remove Programs.

"setup.exe --app-launcher --multi-install" installs the Chrome App Host "with App Launcher experience". At the moment this means a presence in Add/Remove Programs and a modified AP value for the App Host ClientState key.

Subsequent CL will also create a shortcut on the task bar.

BUG=151626

Review URL: https://chromiumcodereview.appspot.com/11267023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@165478 0039d316-1c4b-4281-b951-d872f2087c98
14 files changed