Allow systematic prefix search in bookmarks.

components/bookmarks/browser/bookmark_model.h

Index: components/bookmarks/browser/bookmark_model.h
diff --git a/components/bookmarks/browser/bookmark_model.h b/components/bookmarks/browser/bookmark_model.h
index bf0ded9836627d0067b899b9e19ffd39410455d7..355246138596ad055be0bf8cccfbd4b80a6f27a9 100644
--- a/components/bookmarks/browser/bookmark_model.h
+++ b/components/bookmarks/browser/bookmark_model.h
@@ -236,10 +236,19 @@ class BookmarkModel : public KeyedService {
 
   // Returns up to |max_count| of bookmarks containing each term from |text|
   // in either the title or the URL.
+  // Short terms in the query are matched exactly.
   void GetBookmarksMatching(const base::string16& text,
                             size_t max_count,
                             std::vector<bookmarks::BookmarkMatch>* matches);
 
+  // Returns up to |max_count| of bookmarks containing each term from |text|
+  // in either the title or the URL.
+  // All terms in the query are matched by prefix.
+  void GetBookmarksMatchingPrefixes(
+      const base::string16& text,
+      size_t max_count,
+      std::vector<bookmarks::BookmarkMatch>* matches);
+
   // Sets the store to NULL, making it so the BookmarkModel does not persist
   // any changes to disk. This is only useful during testing to speed up
   // testing.