session_manager: Create ChromeSessionManager early

chrome/browser/chromeos/login/session/stub_session_initializer.h

+// Copyright 2014 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SESSION_STUB_SESSION_INITIALIZER_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_SESSION_STUB_SESSION_INITIALIZER_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "chrome/browser/chromeos/login/session/restore_after_crash_session_initializer.h"
+
+class Profile;
+
+namespace chromeos {
+
+class StubSessionInitializer : public RestoreAfterCrashSessionInitializer {
+ public:
+  StubSessionInitializer(Profile* profile, const std::string& login_user_id);
+  ~StubSessionInitializer() override;
+
+  // RestoreAfterCrashSessionInitializer:
+  void Start() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(StubSessionInitializer);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SESSION_STUB_SESSION_INITIALIZER_H_