Add managed user lock/unlock button for the extensions page.

chrome/browser/resources/extensions/extensions.css

 /* Copyright (c) 2012 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 html.loading * {
   -webkit-transition-duration: 0 !important;
 }
 
 /* Developer mode */
 
@@ skipping 279 matching lines @@
   border-radius: 3px;
   padding: 5px 0 5px 5px;
 }
 
 .may-not-disable .optional-controls .optional-controls-disableable {
   display: none;
 }
 
 /* Managed mode */
 
-.page:not(.profile-is-managed) .profile-is-managed-banner {
+.page:not(.profile-is-managed) .profile-is-managed-banner,
+.profile-is-managed .more-extensions-link,
+.profile-is-managed .extension-commands-config,

[not at google - send to devlin, 2013/02/21 01:29:18]

This confused me for a while... it's orthogonal?

[not at google - send to devlin, 2013/02/21 03:37:46]

Besides which, why hide the commands config in managed mode?

[Adrian Kuegel, 2013/02/21 10:10:54]

Yes, you are right. Sorry, I didn't notice it before. I guess the commands
config does not really have to be hidden, since it only allows to configure how
to use an extension, so I removed this line now.

+.no-managed-user-controls #managed-user-control-div,
+.page:not(.profile-is-managed) #unlock-button,
+.profile-is-managed #lock-button {

[not at google - send to devlin, 2013/02/21 01:29:18]

This last line doesn't make sense to me, and it's probably to do with the class
naming thing I said in the JS... generally I can't follow how you decide to show
lock or unlock.

[Adrian Kuegel, 2013/02/21 10:10:54]

The logic is as follows: The lock button is visible, if the managed user is in
elevated state (which means the manager of the account authenticated from within
the managed account). The unlock button is visible if the managed user is not in
elevated state. And there should be no button at all if the profile does not
belong to a managed user.

   display: none;
 }
 
 .profile-is-managed-banner .page-banner-text {
   background-image: url('chrome://theme/IDR_WARNING');
 }
 
-.profile-is-managed .more-extensions-link {
-  display: none;
+#managed-user-control-div {
+  display: inline-block;
+  padding-left: 7px;
 }
 
 /* Sideload Wipeout */
 
 .sideload-wipeout-learn-more {
   text-decoration: none;
 }
 
 .sideload-wipeout-banner .page-banner-text {
   -webkit-padding-start: 8px;
   background-image: none;
 }