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

components/history/core/browser/history_service.cc

Index: components/history/core/browser/history_service.cc
diff --git a/components/history/core/browser/history_service.cc b/components/history/core/browser/history_service.cc
index 788c90da0890fe2d76700547295d4d5a008b1c2c..e2ab687db36cf6fdc71d504ea1d0556acba4fcbc 100644
--- a/components/history/core/browser/history_service.cc
+++ b/components/history/core/browser/history_service.cc
@@ -625,12 +625,11 @@ void HistoryService::SetFavicons(const GURL& page_url,
                           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))
@@ -638,7 +637,7 @@ void HistoryService::SetLastResortFavicons(
 
   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);
 }
@@ -651,6 +650,14 @@ void HistoryService::SetFaviconsOutOfDateForPage(const GURL& page_url) {
                           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";