Made the bookmarks extension APIs aware of managed bookmarks.

components/bookmarks/browser/bookmark_utils.h

Index: components/bookmarks/browser/bookmark_utils.h
diff --git a/components/bookmarks/browser/bookmark_utils.h b/components/bookmarks/browser/bookmark_utils.h
index c798e17d10e4f72f16d7bb0245fefa9c66c1feb4..ac1a73f624e8ad8234e96dc945d5bfa6e042a0e6 100644
--- a/components/bookmarks/browser/bookmark_utils.h
+++ b/components/bookmarks/browser/bookmark_utils.h
@@ -136,6 +136,10 @@ base::string16 CleanUpUrlForMatching(
 // is overly-long.
 base::string16 CleanUpTitleForMatching(const base::string16& title);
 
+// Returns true if there is at least one managed node in the |list|.
+bool HasManaged(BookmarkModel* model,
+                const std::vector<const BookmarkNode*>& list);
+
 }  // namespace bookmark_utils
 
 // Returns the node with |id|, or NULL if there is no node with |id|.