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

chrome/browser/chromeos/extensions/file_manager/event_router.h

Index: chrome/browser/chromeos/extensions/file_manager/event_router.h
diff --git a/chrome/browser/chromeos/extensions/file_manager/event_router.h b/chrome/browser/chromeos/extensions/file_manager/event_router.h
index 42e65b60b5f4865cdf63fe543ebc6ae7bf0b849f..8ff7f41707459a169103788d5d68715dd8d924b3 100644
--- a/chrome/browser/chromeos/extensions/file_manager/event_router.h
+++ b/chrome/browser/chromeos/extensions/file_manager/event_router.h
@@ -182,11 +182,6 @@ class EventRouter
   void ShowRemovableDeviceInFileManager(VolumeType type,
                                         const base::FilePath& mount_path);
 
-  // Sends onFileTranferUpdated to extensions if needed. If |always| is true,
-  // it sends the event always. Otherwise, it sends the event if enough time has
-  // passed from the previous event so as not to make extension busy.
-  void SendDriveFileTransferEvent(bool always);
-
   // Manages the list of currently active Drive file transfer jobs.
   struct DriveJobInfoWithStatus {
     DriveJobInfoWithStatus();
@@ -195,9 +190,20 @@ class EventRouter
     drive::JobInfo job_info;
     std::string status;
   };
+
+  // Sends onFileTranferUpdated to extensions if needed. The request is send
+  // after enough time has passed from the previous event.

[hirono, 2014/08/29 05:38:30]

Please update the comment with mentioning |call_time| and |should_delay|.

[iseki, 2014/08/29 08:25:09]

Done.

+  void SendDriveFileTransferEvent(
+      const DriveJobInfoWithStatus& job_info_with_status,
+      base::Time call_time,
+      bool should_delay);
+
   std::map<drive::JobID, DriveJobInfoWithStatus> drive_jobs_;
   base::Time last_file_transfer_event_;
   base::Time last_copy_progress_event_;
+  base::Time last_post_delayed_task_;
+
+  const base::TimeDelta startup_time_delta_;

[hirono, 2014/08/29 05:38:30]

Could you rename startup_time_delta_? It is not only for startup now.
Maybe drive_transfer_event_delay_?

[iseki, 2014/08/29 08:25:09]

Done.

 
   WatcherMap file_watchers_;
   scoped_ptr<PrefChangeRegistrar> pref_change_registrar_;