move openMediaGalleryManager fn out of experimental.

chrome/common/extensions/api/experimental_media_galleries.idl

Index: chrome/common/extensions/api/experimental_media_galleries.idl
diff --git a/chrome/common/extensions/api/experimental_media_galleries.idl b/chrome/common/extensions/api/experimental_media_galleries.idl
index 8eaf138bb6ff4bd02faf195bda55c594a3c178da..e9d51e6b2fba14a13e625629c717484f49d3c7b4 100644
--- a/chrome/common/extensions/api/experimental_media_galleries.idl
+++ b/chrome/common/extensions/api/experimental_media_galleries.idl
@@ -6,33 +6,10 @@
 
 namespace experimental.mediaGalleries {
 
-  [inline_doc] enum GetMediaFileSystemsInteractivity {
-    // Do not act interactively.
-    no,
-    // Ask the user to manage permitted media galleries.
-    yes,
-    // Ask the user to manage permitted galleries only if the return set would
-    // otherwise be empty.
-    if_needed
-  };
-
-  [inline_doc] dictionary MediaFileSystemsDetails {
-    // Whether to prompt the user for additional media galleries before
-    // returning the permitted set. Default is silent.
-    GetMediaFileSystemsInteractivity? interactive;
-  };
-
-  callback MediaFileSystemsCallback =
-      void ([instanceOf=LocalFileSystem] optional object[] mediaFileSystems);
   callback AssembleMediaFileCallback =
       void ([instanceOf=Blob] optional object mediaFile);
 
   interface Functions {
-    // Get the media galleries configured in this user agent. If none are
-    // configured or available, the callback will receive an empty array.
-    static void getMediaFileSystems(optional MediaFileSystemsDetails details,
-                                    MediaFileSystemsCallback callback);
-
     // Create a new MediaFile setting the metadata in the Blob to the supplied
     // values, overriding any existing metadata in the media file. If user agent
     // does not recognize the Blob as a supported file format, it will fail.