Remove unused constants and functions from Files app.

chrome/browser/chromeos/file_manager/volume_manager.cc

 // 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.
 
 #include "chrome/browser/chromeos/file_manager/volume_manager.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 81 matching lines @@
 std::string VolumeTypeToString(VolumeType type) {
   switch (type) {
     case VOLUME_TYPE_GOOGLE_DRIVE:
       return "drive";
     case VOLUME_TYPE_DOWNLOADS_DIRECTORY:
       return "downloads";
     case VOLUME_TYPE_REMOVABLE_DISK_PARTITION:
       return "removable";
     case VOLUME_TYPE_MOUNTED_ARCHIVE_FILE:
       return "archive";
-    case VOLUME_TYPE_CLOUD_DEVICE:
-      return "cloud_device";
     case VOLUME_TYPE_PROVIDED:
       return "provided";
     case VOLUME_TYPE_MTP:
       return "mtp";
     case VOLUME_TYPE_TESTING:
       return "testing";
     case NUM_VOLUME_TYPE:
       break;
   }
   NOTREACHED();
@@ skipping 713 matching lines @@
   if (mounted_volumes_.find(volume->volume_id()) == mounted_volumes_.end())
     return;
   if (error_code == chromeos::MOUNT_ERROR_NONE)
     mounted_volumes_.erase(volume->volume_id());
 
   FOR_EACH_OBSERVER(VolumeManagerObserver, observers_,
                     OnVolumeUnmounted(error_code, *volume.get()));
 }
 
 }  // namespace file_manager