[subresource_filter] Add Page Info subtitle on desktop + placeholder string

chrome/browser/ui/page_info/page_info_ui.cc

Index: chrome/browser/ui/page_info/page_info_ui.cc
diff --git a/chrome/browser/ui/page_info/page_info_ui.cc b/chrome/browser/ui/page_info/page_info_ui.cc
index 401b5cd12f5307c98b44dc619dbf3c8189db364e..ffca5ea4e58c5b41e3f171486e9b28de291e7a1e 100644
--- a/chrome/browser/ui/page_info/page_info_ui.cc
+++ b/chrome/browser/ui/page_info/page_info_ui.cc
@@ -339,6 +339,10 @@ base::string16 PageInfoUI::PermissionDecisionReasonToUIString(
     }
   }
 
+  if (permission.type == CONTENT_SETTINGS_TYPE_SUBRESOURCE_FILTER) {
+    message_id = IDS_PAGE_INFO_PERMISSION_SUBRESOURCE_FILTER_SUBTITLE;
+  }

[raymes, 2017/05/15 23:15:50]

nit: no {}

[Charlie Harrison, 2017/05/16 00:42:41]

Done.

+
   if (message_id == kInvalidResourceID)
     return base::string16();
   return l10n_util::GetStringUTF16(message_id);