Fix object ownership in ui/base/models.

components/bookmarks/browser/bookmark_index.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/bookmarks/browser/bookmark_index.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <functional>
 #include <iterator>
 #include <list>
 
 #include "base/i18n/case_conversion.h"
 #include "base/logging.h"
+#include "base/memory/scoped_vector.h"
 #include "base/stl_util.h"
 #include "base/strings/utf_offset_string_conversions.h"
 #include "build/build_config.h"
 #include "components/bookmarks/browser/bookmark_client.h"
 #include "components/bookmarks/browser/bookmark_match.h"
 #include "components/bookmarks/browser/bookmark_node.h"
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "components/query_parser/snippet.h"
 #include "third_party/icu/source/common/unicode/normalizer2.h"
 #include "third_party/icu/source/common/unicode/utypes.h"
@@ skipping 258 matching lines @@
     // We can get here if the node has the same term more than once. For
     // example, a bookmark with the title 'foo foo' would end up here.
     return;
   }
   i->second.erase(node);
   if (i->second.empty())
     index_.erase(i);
 }
 
 }  // namespace bookmarks