set context on REVEAL_IN_OS_COMMAND_ID

src/vs/workbench/contrib/files/electron-browser/fileActions.contribution.ts

@@ -84,7 +84,7 @@ MenuRegistry.appendMenuItem(MenuId.ExplorerContext, {
 // Command Palette
 
 const category = { value: nls.localize('filesCategory', "File"), original: 'File' };
-appendToCommandPalette(REVEAL_IN_OS_COMMAND_ID, { value: REVEAL_IN_OS_LABEL, original: isWindows ? 'Reveal in File Explorer' : isMacintosh ? 'Reveal in Finder' : 'Open Containing Folder' }, category);
+appendToCommandPalette(REVEAL_IN_OS_COMMAND_ID, { value: REVEAL_IN_OS_LABEL, original: isWindows ? 'Reveal in File Explorer' : isMacintosh ? 'Reveal in Finder' : 'Open Containing Folder' }, category, ResourceContextKey.Scheme.isEqualTo(Schemas.file));
 
 const registry = Registry.as<IWorkbenchActionRegistry>(ActionExtensions.WorkbenchActions);
 registry.registerWorkbenchAction(SyncActionDescriptor.create(ShowOpenedFileInNewWindow, ShowOpenedFileInNewWindow.ID, ShowOpenedFileInNewWindow.LABEL, { primary: KeyChord(KeyMod.CtrlCmd | KeyCode.KEY_K, KeyCode.KEY_O) }), 'File: Open Active File in New Window', category.value);