Simplify fileBrowserPrivate.getDriveConnectionStatus().

chrome/browser/chromeos/drive/file_system_util.h

 // Copyright (c) 2012 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_DRIVE_FILE_SYSTEM_UTIL_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_UTIL_H_
 
 #include <string>
 
 #include "base/callback_forward.h"
@@ skipping 186 matching lines @@
 
 // Reads URL from a GDoc file.
 GURL ReadUrlFromGDocFile(const base::FilePath& file_path);
 
 // Reads resource ID from a GDoc file.
 std::string ReadResourceIdFromGDocFile(const base::FilePath& file_path);
 
 // Returns true if Drive is enabled for the given Profile.
 bool IsDriveEnabledForProfile(Profile* profile);
 
+// Enum type for describing the current connection status to Drive.
+enum ConnectionStatusType {
+  // Disconnected because Drive service is unavailable for this account (either
+  // disabled by a flag or the account has no Google account (e.g., guests)).
+  DRIVE_DISCONNECTED_NOSERVICE,
+  // Disconnected because no network is available.
+  DRIVE_DISCONNECTED_NONETWORK,
+  // Disconnected because authentication is not ready.
+  DRIVE_DISCONNECTED_NOTREADY,
+  // Connected by cellular network. Background sync is disabled.
+  DRIVE_CONNECTED_METERED,
+  // Connected without condition (WiFi, Ethernet, or cellular with the
+  // disable-sync preference turned off.)
+  DRIVE_CONNECTED,
+};
+
+// Returns the Drive connection status for the |profile|.
+ConnectionStatusType GetDriveConnectionStatus(Profile* profile);
+
 }  // namespace util
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_UTIL_H_