chromeos: Move files in //ash/common to //ash, part 2

ash/session/session_controller.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/session/session_controller.h"
+#include "ash/session/session_controller.h"
 
 #include <algorithm>
 
-#include "ash/common/session/session_state_observer.h"
+#include "ash/session/session_state_observer.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "services/service_manager/public/cpp/connector.h"
 
 namespace ash {
 
 SessionController::SessionController() {}
 
 SessionController::~SessionController() {}
@@ skipping 137 matching lines @@
 void SessionController::AddUserSession(mojom::UserSessionPtr user_session) {
   const AccountId account_id(user_session->account_id);
 
   user_sessions_.push_back(std::move(user_session));
 
   for (auto& observer : observers_)
     observer.UserAddedToSession(account_id);
 }
 
 }  // namespace ash