Revert 194578 "Add ash SessionStateDelegate"

trunk/src/chrome/browser/ui/ash/chrome_shell_delegate.cc

Index: trunk/src/chrome/browser/ui/ash/chrome_shell_delegate.cc
===================================================================
--- trunk/src/chrome/browser/ui/ash/chrome_shell_delegate.cc	(revision 194588)
+++ trunk/src/chrome/browser/ui/ash/chrome_shell_delegate.cc	(working copy)
@@ -8,7 +8,6 @@
 #include "ash/host/root_window_host_factory.h"
 #include "ash/launcher/launcher_types.h"
 #include "ash/magnifier/magnifier_constants.h"
-#include "ash/session_state_delegate.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/wm/window_properties.h"
@@ -27,7 +26,6 @@
 #include "chrome/browser/ui/ash/ash_keyboard_controller_proxy.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/launcher_context_menu.h"
-#include "chrome/browser/ui/ash/session_state_delegate.h"
 #include "chrome/browser/ui/ash/user_action_handler.h"
 #include "chrome/browser/ui/ash/window_positioner.h"
 #include "chrome/browser/ui/browser.h"
@@ -81,6 +79,11 @@
   return chrome::IsRunningInForcedAppMode();
 }
 
+void ChromeShellDelegate::UnlockScreen() {
+  // This is used only for testing thus far.
+  NOTIMPLEMENTED();
+}
+
 void ChromeShellDelegate::Exit() {
   chrome::AttemptUserExit();
 }
@@ -195,10 +198,6 @@
   return launcher_delegate_;
 }
 
-ash::SessionStateDelegate* ChromeShellDelegate::CreateSessionStateDelegate() {
-  return new SessionStateDelegate;
-}
-
 aura::client::UserActionClient* ChromeShellDelegate::CreateUserActionClient() {
   return new UserActionHandler;
 }