Added refresh on filesystem change

chrome/browser/chromeos/extensions/file_browser_event_router.h

Index: chrome/browser/chromeos/extensions/file_browser_event_router.h
diff --git a/chrome/browser/chromeos/extensions/file_browser_event_router.h b/chrome/browser/chromeos/extensions/file_browser_event_router.h
index 835564974c0bf2d8a3c431149e8814c3e4b752dc..542feb3d7c40b40e244baac5c5185f8d38901347 100644
--- a/chrome/browser/chromeos/extensions/file_browser_event_router.h
+++ b/chrome/browser/chromeos/extensions/file_browser_event_router.h
@@ -60,18 +60,28 @@ class ExtensionFileBrowserEventRouter
   typedef std::map<std::string, linked_ptr<chromeos::SystemNotification> >
       NotificationMap;
   typedef std::map<std::string, std::string> MountPointMap;
+  typedef std::map<std::string, int> ExtensionUsageRegistry;
+
   typedef struct FileWatcherExtensions {

[zel, 2011/09/12 15:58:42]

let's make this a class now since it's not just collection of data members
anymore

[Dmitry Zvorygin, 2011/09/14 10:15:49]

Done.

     FileWatcherExtensions(const FilePath& path,
-        const std::string& extension_id) {
-      file_watcher.reset(new base::files::FilePathWatcher());
-      virtual_path = path;
-      extensions.insert(extension_id);
-    }
+        const std::string& extension_id);
+
     ~FileWatcherExtensions() {}
     linked_ptr<base::files::FilePathWatcher> file_watcher;
     FilePath local_path;
     FilePath virtual_path;
-    std::set<std::string> extensions;
+
+    void AddExtension(const std::string& extension_id);
+
+    void RemoveExtension(const std::string& extension_id);
+
+    const ExtensionUsageRegistry& GetExtensions() const;
+
+    unsigned int GetRefCount() const;
+
+   private:
+    ExtensionUsageRegistry extensions;
+    unsigned int ref_count;
   } FileWatcherProcess;
   typedef std::map<FilePath, FileWatcherExtensions*> WatcherMap;
 
@@ -112,7 +122,7 @@ class ExtensionFileBrowserEventRouter
 
   // Sends folder change event.
   void DispatchFolderChangeEvent(const FilePath& path, bool error,
-                                 const std::set<std::string>& extensions);
+                                 const ExtensionUsageRegistry& extensions);
 
   // Sends filesystem changed extension message to all renderers.
   void DispatchMountEvent(const chromeos::MountLibrary::Disk* disk, bool added);