ash: Use SessionController instead of SessionStateDelegate

ash/common/shelf/shelf_window_watcher_unittest.cc

 // Copyright 2013 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/shelf/shelf_window_watcher.h"
 
-#include "ash/common/session/session_state_delegate.h"
+#include "ash/common/session/session_controller.h"
 #include "ash/common/shelf/shelf_model.h"
 #include "ash/common/wm/window_resizer.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/public/cpp/shelf_item.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"
@@ skipping 352 matching lines @@
   child_window.reset();
   window.reset();
   EXPECT_EQ(initial_item_count, model_->item_count());
 }
 
 // Ensures ShelfWindowWatcher supports windows opened prior to session start.
 using ShelfWindowWatcherSessionStartTest = test::NoSessionAshTestBase;
 TEST_F(ShelfWindowWatcherSessionStartTest, PreExistingWindow) {
   ShelfModel* model = WmShell::Get()->shelf_model();
   ASSERT_FALSE(
-      WmShell::Get()->GetSessionStateDelegate()->IsActiveUserSessionStarted());
+      WmShell::Get()->session_controller()->IsActiveUserSessionStarted());
 
   // ShelfModel only has an APP_LIST item.
   EXPECT_EQ(1, model->item_count());
 
   // Construct a window that should get a shelf item once the session starts.
   std::unique_ptr<views::Widget> widget =
       CreateTestWidget(nullptr, kShellWindowId_DefaultContainer, gfx::Rect());
   WmWindow* window = WmWindow::Get(widget->GetNativeWindow());
   ShelfWindowWatcherTest::CreateShelfItem(window);
   EXPECT_EQ(1, model->item_count());
 
   // Start the test user session; ShelfWindowWatcher will find the open window.
   SetSessionStarted(true);
   EXPECT_EQ(2, model->item_count());
 }
 
 }  // namespace ash