Http Bad: Add "Learn more" sublabel to warning message and make it clickable

components/autofill/core/browser/autofill_manager.cc

Index: components/autofill/core/browser/autofill_manager.cc
diff --git a/components/autofill/core/browser/autofill_manager.cc b/components/autofill/core/browser/autofill_manager.cc
index 3de9157f9a094776a3d5bc62002a367986f4f86a..5fa3865f976babe87c232e41f7d7108a4fabe5a2 100644
--- a/components/autofill/core/browser/autofill_manager.cc
+++ b/components/autofill/core/browser/autofill_manager.cc
@@ -190,6 +190,8 @@ Suggestion CreateHttpWarningMessageSuggestionItem(const GURL& source_url) {
       l10n_util::GetStringUTF16(IDS_AUTOFILL_CREDIT_CARD_HTTP_WARNING_MESSAGE));
   cc_field_http_warning_suggestion.frontend_id =
       POPUP_ITEM_ID_HTTP_NOT_SECURE_WARNING_MESSAGE;
+  cc_field_http_warning_suggestion.label =
+      l10n_util::GetStringUTF16(IDS_AUTOFILL_HTTP_WARNING_LEARN_MORE);
   cc_field_http_warning_suggestion.icon =
       (source_url.is_valid() && source_url.SchemeIs("http"))
           ? base::ASCIIToUTF16("httpWarning")