[Thumbnails DB] Allow setting last_requested time when accessing favicons.

components/history/core/browser/history_service.cc

 // Copyright (c) 2012 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.
 
 // The history system runs on a background thread so that potentially slow
 // database operations don't delay the browser. This backend processing is
 // represented by HistoryBackend. The HistoryService's job is to dispatch to
 // that thread.
 //
 // Main thread                       History thread
@@ skipping 607 matching lines @@
   DCHECK(backend_task_runner_) << "History service being called after cleanup";
   DCHECK(thread_checker_.CalledOnValidThread());
   if (history_client_ && !history_client_->CanAddURL(page_url))
     return;
 
   ScheduleTask(PRIORITY_NORMAL,
                base::Bind(&HistoryBackend::SetFavicons, history_backend_,
                           page_url, icon_type, icon_url, bitmaps));
 }
 
-void HistoryService::SetLastResortFavicons(
-    const GURL& page_url,
-    favicon_base::IconType icon_type,
-    const GURL& icon_url,
-    const std::vector<SkBitmap>& bitmaps,
-    base::Callback<void(bool)> callback) {
+void HistoryService::SetOnDemandFavicons(const GURL& page_url,
+                                         favicon_base::IconType icon_type,
+                                         const GURL& icon_url,
+                                         const std::vector<SkBitmap>& bitmaps,
+                                         base::Callback<void(bool)> callback) {
   DCHECK(backend_task_runner_) << "History service being called after cleanup";
   DCHECK(thread_checker_.CalledOnValidThread());
   if (history_client_ && !history_client_->CanAddURL(page_url))
     return;
 
   PostTaskAndReplyWithResult(
       backend_task_runner_.get(), FROM_HERE,
-      base::Bind(&HistoryBackend::SetLastResortFavicons, history_backend_,
+      base::Bind(&HistoryBackend::SetOnDemandFavicons, history_backend_,
                  page_url, icon_type, icon_url, bitmaps),
       callback);
 }
 
 void HistoryService::SetFaviconsOutOfDateForPage(const GURL& page_url) {
   DCHECK(backend_task_runner_) << "History service being called after cleanup";
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleTask(PRIORITY_NORMAL,
                base::Bind(&HistoryBackend::SetFaviconsOutOfDateForPage,
                           history_backend_, page_url));
 }
 
+void HistoryService::TouchOnDemandFavicon(const GURL& icon_url) {
+  DCHECK(backend_task_runner_) << "History service being called after cleanup";
+  DCHECK(thread_checker_.CalledOnValidThread());
+  ScheduleTask(PRIORITY_NORMAL,
+               base::Bind(&HistoryBackend::TouchOnDemandFavicon,
+                          history_backend_, icon_url));
+}
+
 void HistoryService::SetImportedFavicons(
     const favicon_base::FaviconUsageDataList& favicon_usage) {
   DCHECK(backend_task_runner_) << "History service being called after cleanup";
   DCHECK(thread_checker_.CalledOnValidThread());
   ScheduleTask(PRIORITY_NORMAL,
                base::Bind(&HistoryBackend::SetImportedFavicons,
                           history_backend_, favicon_usage));
 }
 
 base::CancelableTaskTracker::TaskId HistoryService::QueryURL(
@@ skipping 501 matching lines @@
   return favicon_changed_callback_list_.Add(callback);
 }
 
 void HistoryService::NotifyFaviconsChanged(const std::set<GURL>& page_urls,
                                            const GURL& icon_url) {
   DCHECK(thread_checker_.CalledOnValidThread());
   favicon_changed_callback_list_.Notify(page_urls, icon_url);
 }
 
 }  // namespace history