Enrich fileBrowserPrivate.onFileTransfersUpdated event to support displaying total number of jobs.

chrome/common/extensions/api/file_browser_private.idl

 // 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.
 
 // fileBrowserPrivate API.
 // This is a private API used by the file browser of ChromeOS.
 [platforms=("chromeos"),
  implemented_in="chrome/browser/chromeos/extensions/file_manager/file_browser_private_api_functions.h"]
 namespace fileBrowserPrivate {
 // Type of the mounted volume.
@@ skipping 28 matching lines @@
   error_mount_program_failed,
   error_invalid_device_path,
   error_unknown_filesystem,
   error_unsupported_filesystem,
   error_invalid_archive,
   error_authentication,
   error_path_unmounted
 };
 
 // File transfer progress state.
-enum TransferState { started, in_progress, completed, failed };
+enum TransferState { added, started, in_progress, completed, failed };
 
 // Defines file transfer direction.
 enum TransferType { upload, download };
 
 // The type of the progress event.
 enum CopyProgressStatusType {
   // "begin_copy_entry" is fired for each entry (file or directory) before
   // starting the copy operation.
   begin_copy_entry,
 
@@ skipping 255 matching lines @@
   TransferState transferState;
 
   // Defines file transfer direction.
   TransferType transferType;
 
   // Approximated completed portion of the transfer operation.
   double? processed;
 
   // Approximated total size of transfer operation.
   double? total;
+
+  // Total number of jobs.
+  double? num_total_jobs;

[hirono, 2014/08/27 08:37:20]

The reason why we use double for number of bytes is that the size of long is not
enough for bytes numbers.
It is OK to use long for the number of jobs.

[iseki, 2014/08/28 07:13:32]

Done.

 };
 
 // Error during the drive sync.
 dictionary DriveSyncErrorEvent {
   // Error type.
   DriveSyncErrorType type;
 
   // File URL of the entry that the error happens to.
   DOMString fileUrl;
 };
@@ skipping 486 matching lines @@
   static void onDriveSyncError(DriveSyncErrorEvent event);
 
   // Dispatched when a profile is added.
   static void onProfileAdded();
 
   // Dispatched when any window moves another desktop.
   // TODO(hirono): Add information which window is moved.
   static void onDesktopChanged();
 };
 };