[session_manager] Move user session initialization code out of ExistingUserController

chrome/browser/chromeos/login/existing_user_controller.h

Index: chrome/browser/chromeos/login/existing_user_controller.h
diff --git a/chrome/browser/chromeos/login/existing_user_controller.h b/chrome/browser/chromeos/login/existing_user_controller.h
index cd4e90bc227cfcd8e9c800a3bbf8c52548a2cf53..6b799f24b95fe0deb581dea32cf645d6e9e752ce 100644
--- a/chrome/browser/chromeos/login/existing_user_controller.h
+++ b/chrome/browser/chromeos/login/existing_user_controller.h
@@ -156,20 +156,15 @@ class ExistingUserController : public LoginDisplay::Delegate,
       const std::string& username, bool success) override;
 
   // LoginUtils::Delegate implementation:
-  virtual void OnProfilePrepared(Profile* profile) override;
+  virtual void OnProfilePrepared(Profile* profile,
+                                 bool browser_launched) override;
 
   // Called when device settings change.
   void DeviceSettingsChanged();
 
-  // Starts WizardController with the specified screen.
-  void ActivateWizard(const std::string& screen_name);
-
   // Returns corresponding native window.
   gfx::NativeWindow GetNativeWindow() const;
 
-  // Adds first-time login URLs.
-  void InitializeStartUrls() const;
-
   // Show error message. |error_id| error message ID in resources.
   // If |details| string is not empty, it specify additional error text
   // provided by authenticator, it is not localized.