Media Galleries: Always call MediaFileSystemRegistry::GetMediaFileSystemsForExtension() before show…

chrome/browser/extensions/api/media_galleries/media_galleries_api.h

Index: chrome/browser/extensions/api/media_galleries/media_galleries_api.h
===================================================================
--- chrome/browser/extensions/api/media_galleries/media_galleries_api.h	(revision 179687)
+++ chrome/browser/extensions/api/media_galleries/media_galleries_api.h	(working copy)
@@ -26,6 +26,10 @@
   virtual bool RunImpl() OVERRIDE;
 
  private:
+  // Always show the dialog.
+  void AlwaysShowDialog(
+      const std::vector<chrome::MediaFileSystemInfo>& filesystems);
+
   // If no galleries are found, show the dialog, otherwise return them.
   void ShowDialogIfNoGalleries(
       const std::vector<chrome::MediaFileSystemInfo>& filesystems);
@@ -40,6 +44,11 @@
 
   // Shows the configuration dialog to edit gallery preferences.
   void ShowDialog();
+
+  // A helper method that calls
+  // MediaFileSystemRegistry::GetMediaFileSystemsForExtension().
+  void GetMediaFileSystemsForExtension(
+      const chrome::MediaFileSystemsCallback& cb);
 };
 
 class MediaGalleriesAssembleMediaFileFunction : public SyncExtensionFunction {