Revert of Introduce SessionManager that will contain code to start user session on Chrome OS

chrome/browser/chromeos/preferences.cc

Index: chrome/browser/chromeos/preferences.cc
diff --git a/chrome/browser/chromeos/preferences.cc b/chrome/browser/chromeos/preferences.cc
index 74d419cb24210d1287b454724517737f74b10912..d0e04df2792ce1d2af8709b4bf1f57bad55f0e96 100644
--- a/chrome/browser/chromeos/preferences.cc
+++ b/chrome/browser/chromeos/preferences.cc
@@ -24,7 +24,7 @@
 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
-#include "chrome/browser/chromeos/login/session/session_manager.h"
+#include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/users/user.h"
 #include "chrome/browser/chromeos/system/input_device_settings.h"
 #include "chrome/browser/download/download_prefs.h"
@@ -361,10 +361,10 @@
   ApplyPreferences(REASON_INITIALIZATION, "");
 
   // If a guest is logged in, initialize the prefs as if this is the first
-  // login. For a regular user this is done in
-  // SessionManager::InitProfilePreferences().
-  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kGuestSession))
-    SessionManager::SetFirstLoginPrefs(prefs);
+  // login.
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kGuestSession)) {
+    LoginUtils::Get()->SetFirstLoginPrefs(prefs);
+  }
 }
 
 void Preferences::InitUserPrefsForTesting(PrefServiceSyncable* prefs,