Make HistoryContentsProvider results deletable

chrome/browser/autocomplete/history_contents_provider.cc

 // Copyright (c) 2010 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/autocomplete/history_contents_provider.h"
 
 #include "base/callback.h"
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 35 matching lines @@
   // Want results in reverse-chronological order all else being equal.
   return a.result->last_visit() > b.result->last_visit();
 }
 
 }  // namespace
 
 using history::HistoryDatabase;
 
 HistoryContentsProvider::HistoryContentsProvider(ACProviderListener* listener,
                                                  Profile* profile)
-    : AutocompleteProvider(listener, profile, "HistoryContents"),
+    : HistoryProvider(listener, profile, "HistoryContents"),
       star_title_count_(0),
       star_contents_count_(0),
       title_count_(0),
       contents_count_(0),
       input_type_(AutocompleteInput::INVALID),
       trim_http_(false),
       have_results_(false) {
 }
 
 void HistoryContentsProvider::Start(const AutocompleteInput& input,
@@ skipping 148 matching lines @@
 
 static bool MatchInTitle(const history::URLResult& result) {
   return !result.title_match_positions().empty();
 }
 
 AutocompleteMatch HistoryContentsProvider::ResultToMatch(
     const history::URLResult& result,
     int score) {
   // TODO(sky): if matched title highlight matching words in title.
   // Also show star in popup.
-  AutocompleteMatch match(this, score, false, MatchInTitle(result) ?
+  AutocompleteMatch match(this, score, true, MatchInTitle(result) ?
       AutocompleteMatch::HISTORY_TITLE : AutocompleteMatch::HISTORY_BODY);
   match.contents = StringForURLDisplay(result.url(), true, trim_http_);
   match.fill_into_edit =
       AutocompleteInput::FormattedStringWithEquivalentMeaning(result.url(),
                                                               match.contents);
   match.destination_url = result.url();
   match.contents_class.push_back(
       ACMatchClassification(0, ACMatchClassification::URL));
   match.description = UTF16ToWide(result.title());
   match.starred =
@@ skipping 55 matching lines @@
   UMA_HISTOGRAM_TIMES("Omnibox.QueryBookmarksTime",
                       TimeTicks::Now() - start_time);
 }
 
 void HistoryContentsProvider::AddBookmarkTitleMatchToResults(
     const bookmark_utils::TitleMatch& match) {
   history::URLResult url_result(match.node->GetURL(), match.match_positions);
   url_result.set_title(match.node->GetTitle());
   results_.AppendURLBySwapping(&url_result);
 }