Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/common/session/session_controller_unittest.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/session/session_controller.h"
+#include "ash/common/session/session_controller.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
+#include "ash/common/session/session_controller.h"
+#include "ash/common/session/session_state_observer.h"
 #include "ash/public/interfaces/session_controller.mojom.h"
-#include "ash/session/session_controller.h"
-#include "ash/session/session_state_observer.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "components/user_manager/user_type.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ash {
 namespace {
 
 class TestSessionStateObserver : public SessionStateObserver {
  public:
@@ skipping 202 matching lines @@
   EXPECT_EQ("user2@test.com", observer()->active_account_id().GetUserEmail());
 
   order = {1u, 2u};
   controller()->SetUserSessionOrder(order);
   EXPECT_EQ("user1@test.com,user2@test.com,", GetUserSessionEmails());
   EXPECT_EQ("user1@test.com", observer()->active_account_id().GetUserEmail());
 }
 
 }  // namespace
 }  // namespace ash