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

chrome/browser/ui/autofill/chrome_autofill_client.cc

Index: chrome/browser/ui/autofill/chrome_autofill_client.cc
diff --git a/chrome/browser/ui/autofill/chrome_autofill_client.cc b/chrome/browser/ui/autofill/chrome_autofill_client.cc
index 70354e9f7576431024ac355421e35e56277704e9..8b3fa8fcbd8c9d3b62054ca57155a7c87accbec3 100644
--- a/chrome/browser/ui/autofill/chrome_autofill_client.cc
+++ b/chrome/browser/ui/autofill/chrome_autofill_client.cc
@@ -392,4 +392,10 @@ void ChromeAutofillClient::StartSigninFlow() {
 #endif
 }
 
+void ChromeAutofillClient::OpenUrl(const GURL& url) {
+  web_contents()->OpenURL(content::OpenURLParams(
+      url, content::Referrer(), WindowOpenDisposition::NEW_FOREGROUND_TAB,
+      ui::PAGE_TRANSITION_LINK, false /* is_renderer_initiated */));
+}
+
 }  // namespace autofill