Remove TabContents from TabStripModelObserver::TabDetachedAt.

BUG=107201
TEST=no visible change


Review URL: https://chromiumcodereview.appspot.com/11293205

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167122 0039d316-1c4b-4281-b951-d872f2087c98
void BrowserCommandController::UpdateCommandsForMultipleProfiles() {
  bool show_main_ui = IsShowingMainUI(window() && window()->IsFullscreen());
  command_updater_.UpdateCommandEnabled(IDC_SHOW_AVATAR_MENU,
      show_main_ui &&
      !profile()->IsOffTheRecord() &&
      ProfileManager::IsMultipleProfilesEnabled());
}

void BrowserCommandController::UpdateCommandsForMultipleProfiles() {
  bool show_main_ui = IsShowingMainUI(window() && window()->IsFullscreen());
  command_updater_.UpdateCommandEnabled(IDC_SHOW_AVATAR_MENU,
      show_main_ui &&
      !profile()->IsOffTheRecord() &&
      ProfileManager::IsMultipleProfilesEnabled());
}
