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

chrome/browser/ui/webui/browsing_history_handler.cc

 // Copyright 2015 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 "chrome/browser/ui/webui/browsing_history_handler.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 162 matching lines @@
   this->is_search_result = is_search_result;
   this->snippet = snippet;
   this->blocked_visit = blocked_visit;
   this->accept_languages = accept_languages;
 }
 
 BrowsingHistoryHandler::HistoryEntry::HistoryEntry()
     : entry_type(EMPTY_ENTRY), is_search_result(false), blocked_visit(false) {
 }
 
+BrowsingHistoryHandler::HistoryEntry::HistoryEntry(const HistoryEntry& other) =
+    default;
+
 BrowsingHistoryHandler::HistoryEntry::~HistoryEntry() {
 }
 
 void BrowsingHistoryHandler::HistoryEntry::SetUrlAndTitle(
     base::DictionaryValue* result) const {
   result->SetString("url", url.spec());
 
   bool using_url_as_the_title = false;
   base::string16 title_to_set(title);
   if (title.empty()) {
@@ skipping 719 matching lines @@
 
 void BrowsingHistoryHandler::OnURLsDeleted(
     history::HistoryService* history_service,
     bool all_history,
     bool expired,
     const history::URLRows& deleted_rows,
     const std::set<GURL>& favicon_urls) {
   if (all_history || DeletionsDiffer(deleted_rows, urls_to_be_deleted_))
     web_ui()->CallJavascriptFunction("historyDeleted");
 }