Use ExtensionRegistryObserver instead of deprecated extension notification.
commitd9fb69b27cd48a1893ac367c96b5731f27072861
authorlimasdf@gmail.com <limasdf@gmail.com@0039d316-1c4b-4281-b951-d872f2087c98>
Mon, 26 May 2014 19:25:01 +0000 (26 19:25 +0000)
committerlimasdf@gmail.com <limasdf@gmail.com@0039d316-1c4b-4281-b951-d872f2087c98>
Mon, 26 May 2014 19:25:01 +0000 (26 19:25 +0000)
tree295d9253bdd4ed1dde08579274e505752e56661c
parent191b12774a932b8cee9d0a3b75473c1383a8b647
Use ExtensionRegistryObserver instead of deprecated extension notification.
and Use ExtensionRegistry functions instead of deprecated  ExtensionService functions.

R=xiyuan@chromium.org,rdevlin.cronin@chromium.org
BUG=354046, 354458

Review URL: https://codereview.chromium.org/275503003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272861 0039d316-1c4b-4281-b951-d872f2087c98
chrome/browser/ui/webui/app_list/start_page_handler.cc
chrome/browser/ui/webui/app_list/start_page_handler.h
chrome/browser/ui/webui/extensions/command_handler.cc
chrome/browser/ui/webui/extensions/command_handler.h