ash: Use SessionController instead of SessionStateDelegate

ash/common/wm/container_finder.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/wm/container_finder.h"
 
-#include "ash/common/session/session_state_delegate.h"
+#include "ash/common/session/session_controller.h"
 #include "ash/common/wm/always_on_top_controller.h"
 #include "ash/common/wm/root_window_finder.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/public/cpp/window_properties.h"
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
 #include "ui/aura/window.h"
@@ skipping 14 matching lines @@
          window->GetTransientParent()->GetType() != ui::wm::WINDOW_TYPE_UNKNOWN;
 }
 
 WmWindow* GetSystemModalContainer(WmWindow* root, WmWindow* window) {
   DCHECK(window->IsSystemModal());
 
   // If screen lock is not active and user session is active,
   // all modal windows are placed into the normal modal container.
   // In case of missing transient parent (it could happen for alerts from
   // background pages) assume that the window belongs to user session.
-  if (!window->GetShell()->GetSessionStateDelegate()->IsUserSessionBlocked() ||
+  if (!WmShell::Get()->session_controller()->IsUserSessionBlocked() ||
       !window->GetTransientParent()) {
     return root->GetChildByShellWindowId(kShellWindowId_SystemModalContainer);
   }
 
   // Otherwise those that originate from LockScreen container and above are
   // placed in the screen lock modal container.
   int window_container_id =
       window->GetTransientParent()->GetParent()->GetShellWindowId();
   if (window_container_id < kShellWindowId_LockScreenContainer)
     return root->GetChildByShellWindowId(kShellWindowId_SystemModalContainer);
@@ skipping 70 matching lines @@
     if (priority_root && priority_root->Contains(container))
       containers.insert(containers.begin(), container);
     else
       containers.push_back(container);
   }
   return containers;
 }
 
 }  // namespace wm
 }  // namespace ash