Move BookmarkMatch into bookmarks namespace.

components/bookmarks/browser/bookmark_match.h

 // 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.
 
 #ifndef COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_TITLE_MATCH_H_
 #define COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_TITLE_MATCH_H_
 
 #include <cstddef>
 #include <utility>
 #include <vector>
 
 class BookmarkNode;
 
+namespace bookmarks {
+
 struct BookmarkMatch {
   // Each MatchPosition is the [begin, end) positions of a match within a
   // string.
   typedef std::pair<size_t, size_t> MatchPosition;
   typedef std::vector<MatchPosition> MatchPositions;
 
   BookmarkMatch();
   ~BookmarkMatch();
 
   // Extracts and returns the offsets from |match_positions|.
@@ skipping 10 matching lines @@
   // The matching node of a query.
   const BookmarkNode* node;
 
   // Location of the matching words in the title of the node.
   MatchPositions title_match_positions;
 
   // Location of the matching words in the URL of the node.
   MatchPositions url_match_positions;
 };
 
+}  // namespace bookmarks
+
 #endif  // COMPONENTS_BOOKMARKS_BROWSER_BOOKMARK_TITLE_MATCH_H_