Add ash SessionStateDelegate

ash/shell/shell_delegate_impl.cc

Index: ash/shell/shell_delegate_impl.cc
diff --git a/ash/shell/shell_delegate_impl.cc b/ash/shell/shell_delegate_impl.cc
index bb29637e088b4bf24ab8a39e8858da3c27074acc..69dec53ca6c10ff197bb7e4d2ae181d8684fce17 100644
--- a/ash/shell/shell_delegate_impl.cc
+++ b/ash/shell/shell_delegate_impl.cc
@@ -8,6 +8,8 @@
 
 #include "ash/caps_lock_delegate_stub.h"
 #include "ash/host/root_window_host_factory.h"
+#include "ash/session_state_delegate.h"
+#include "ash/session_state_delegate_stub.h"
 #include "ash/shell/context_menu.h"
 #include "ash/shell/example_factory.h"
 #include "ash/shell/launcher_delegate_impl.h"
@@ -23,7 +25,6 @@ namespace shell {
 ShellDelegateImpl::ShellDelegateImpl()
     : watcher_(NULL),
       launcher_delegate_(NULL),
-      locked_(false),
       spoken_feedback_enabled_(false),
       high_contrast_enabled_(false),
       screen_magnifier_enabled_(false),
@@ -39,18 +40,6 @@ void ShellDelegateImpl::SetWatcher(WindowWatcher* watcher) {
     launcher_delegate_->set_watcher(watcher);
 }
 
-bool ShellDelegateImpl::IsUserLoggedIn() const {
-  return true;
-}
-
-bool ShellDelegateImpl::IsSessionStarted() const {
-  return true;
-}
-
-bool ShellDelegateImpl::IsGuestSession() const {
-  return false;
-}
-
 bool ShellDelegateImpl::IsFirstRunAfterBoot() const {
   return false;
 }
@@ -63,25 +52,6 @@ bool ShellDelegateImpl::IsRunningInForcedAppMode() const {
   return false;
 }
 
-bool ShellDelegateImpl::CanLockScreen() const {
-  return true;
-}
-
-void ShellDelegateImpl::LockScreen() {
-  ash::shell::CreateLockScreen();
-  locked_ = true;
-  ash::Shell::GetInstance()->UpdateShelfVisibility();
-}
-
-void ShellDelegateImpl::UnlockScreen() {
-  locked_ = false;
-  ash::Shell::GetInstance()->UpdateShelfVisibility();
-}
-
-bool ShellDelegateImpl::IsScreenLocked() const {
-  return locked_;
-}
-
 void ShellDelegateImpl::PreInit() {
 }
 
@@ -198,6 +168,10 @@ ash::CapsLockDelegate* ShellDelegateImpl::CreateCapsLockDelegate() {
   return new CapsLockDelegateStub;
 }
 
+ash::SessionStateDelegate* ShellDelegateImpl::CreateSessionStateDelegate() {
+  return new SessionStateDelegateStub;
+}
+
 aura::client::UserActionClient* ShellDelegateImpl::CreateUserActionClient() {
   return NULL;
 }