Reload plugin options from user's preferences after login

Previously PluginService::InitGlobalInstance was called only from BrowserMain i.e. before user profile is mounted. This change adds options reload when user profile is available. I checked boot times are not affected by this change.

BUG=chromium-os:7556
TEST=Manual, see issue

Review URL: http://codereview.chromium.org/6299010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71938 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/login/login_utils.cc

@@ -37,6 +37,7 @@
 #include "chrome/browser/net/gaia/token_service.h"
 #include "chrome/browser/net/preconnect.h"
 #include "chrome/browser/net/pref_proxy_config_service.h"
+#include "chrome/browser/plugin_updater.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ -307,6 +308,10 @@ void LoginUtilsImpl::CompleteLogin(
     SetFirstLoginPrefs(profile->GetPrefs());
   }
 
+  // Enable/disable plugins based on user preferences.
+  PluginUpdater::GetInstance()->DisablePluginGroupsFromPrefs(profile);
+  btl->AddLoginTimeMarker("PluginsStateUpdated", false);
+
   // We suck. This is a hack since we do not have the enterprise feature
   // done yet to pull down policies from the domain admin. We'll take this
   // out when we get that done properly.