MD Bookmarks: Implement item selection in new data flow system

chrome/browser/resources/md_bookmarks/types.js

Index: chrome/browser/resources/md_bookmarks/types.js
diff --git a/chrome/browser/resources/md_bookmarks/types.js b/chrome/browser/resources/md_bookmarks/types.js
index 9ffdc99c04fd27955fd279fdfb054505260c807d..a3b463a36fc4fdbafbd1eb598d7369ec19fee772 100644
--- a/chrome/browser/resources/md_bookmarks/types.js
+++ b/chrome/browser/resources/md_bookmarks/types.js
@@ -28,6 +28,14 @@ var NodeList;
 
 /**
  * @typedef{{
+ *   items: !Object<string, boolean>,
+ *   anchor: ?string,
+ * }}
+ */
+var SelectionState;
+
+/**
+ * @typedef{{
  *   term: string,
  *   inProgress: boolean,
  *   results: !Array<string>,
@@ -44,6 +52,7 @@ var ClosedFolderState;
  *   selectedFolder: ?string,
  *   closedFolders: ClosedFolderState,
  *   search: SearchState,
+ *   selection: SelectionState,
  * }}
  */
 var BookmarksPageState;