components: Add out-of-line copy ctors for complex classes.

components/bookmarks/browser/bookmark_match.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_match.h"
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
 
 namespace bookmarks {
 
 BookmarkMatch::BookmarkMatch() : node(NULL) {}
 
+BookmarkMatch::BookmarkMatch(const BookmarkMatch& other) = default;
+
 BookmarkMatch::~BookmarkMatch() {}
 
 // static
 std::vector<size_t> BookmarkMatch::OffsetsFromMatchPositions(
     const MatchPositions& match_positions) {
   std::vector<size_t> offsets;
   for (MatchPositions::const_iterator i = match_positions.begin();
        i != match_positions.end(); ++i) {
     offsets.push_back(i->first);
     offsets.push_back(i->second);
@@ skipping 15 matching lines @@
     const size_t end = *offset_iter;
     if ((begin != base::string16::npos) && (end != base::string16::npos)) {
       const MatchPosition new_match_position(begin, end);
       new_match_positions.push_back(new_match_position);
     }
   }
   return new_match_positions;
 }
 
 }  // namespace bookmarks