Add LoginState class to src/chromeos/login

chrome/browser/extensions/extension_system.cc

Index: chrome/browser/extensions/extension_system.cc
diff --git a/chrome/browser/extensions/extension_system.cc b/chrome/browser/extensions/extension_system.cc
index 3831fa493da72612c506df286d5ae67ee9b667f3..148e01cd53f6b50ec2f4a2773a76eda7c3570d33 100644
--- a/chrome/browser/extensions/extension_system.cc
+++ b/chrome/browser/extensions/extension_system.cc
@@ -49,8 +49,8 @@
 #include "content/public/browser/url_data_source.h"
 
 #if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/login/user_manager.h"
 #include "chromeos/chromeos_switches.h"
+#include "chromeos/login/login_state.h"
 #endif
 
 using content::BrowserThread;
@@ -163,7 +163,7 @@ void ExtensionSystemImpl::Shared::Init(bool extensions_enabled) {
   bool skip_session_extensions = false;
 #if defined(OS_CHROMEOS)
   // Skip loading session extensions if we are not in a user session.
-  skip_session_extensions = !chromeos::UserManager::Get()->IsUserLoggedIn();
+  skip_session_extensions = !chromeos::LoginState::Get()->IsUserLoggedIn();
 #endif
   extension_service_->component_loader()->AddDefaultComponentExtensions(
       skip_session_extensions);