Enable Google Drive offline mode automatically on first run.

chrome/browser/chromeos/first_run/drive_first_run_controller.h

+// 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.
+#ifndef CHROME_BROWSER_CHROMEOS_FIRST_RUN_DRIVE_FIRST_RUN_CONTROLLER_H_
+#define CHROME_BROWSER_CHROMEOS_FIRST_RUN_DRIVE_FIRST_RUN_CONTROLLER_H_
+
+#include "base/basictypes.h"
+#include "base/timer/timer.h"
+#include "chrome/browser/profiles/profile.h"
+
+namespace chromeos {
+
+class DriveWebContentsManager;
+
+// This class is responsible for kicking off the Google Drive offline
+// initialization process. There is an initial delay to avoid contention when
+// the session starts. DriveFirstRunController will manage its own lifetime and
+// destroy itself when the initialization succeeds or fails.
+class DriveFirstRunController {
+ public:
+  DriveFirstRunController();
+  ~DriveFirstRunController();
+
+  // Starts the process to enable offline mode for the user's Drive account.
+  void EnableOfflineMode();
+
+ private:
+  // Used as a callback to indicate whether the offline initialization
+  // succeeds or fails.
+  void OnOfflineInit(bool success);
+
+  // Called when timed out waiting for offline initialization to complete.
+  void OnWebContentsTimedOut();
+
+  // Cleans up internal state and schedules self for deletion.
+  void CleanUp();
+
+  Profile* profile_;
+  scoped_ptr<DriveWebContentsManager> web_contents_manager_;
+  base::OneShotTimer<DriveFirstRunController> web_contents_timer_;
+  base::OneShotTimer<DriveFirstRunController> initial_delay_timer_;
+  bool started_;
+
+  DISALLOW_COPY_AND_ASSIGN(DriveFirstRunController);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_FIRST_RUN_DRIVE_FIRST_RUN_CONTROLLER_H_