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

components/autofill/core/browser/autofill_client.h

Index: components/autofill/core/browser/autofill_client.h
diff --git a/components/autofill/core/browser/autofill_client.h b/components/autofill/core/browser/autofill_client.h
index 61b10177c41b4ae696941aeabfcb2a049cbec601..120422de0682c02222b17165e0c5e51342da7535 100644
--- a/components/autofill/core/browser/autofill_client.h
+++ b/components/autofill/core/browser/autofill_client.h
@@ -191,6 +191,9 @@ class AutofillClient {
   // Starts the signin flow. Should not be called if ShouldShowSigninPromo()
   // returns false.
   virtual void StartSigninFlow() = 0;
+
+  // Opens url in a new tab.
+  virtual void OpenUrl(const GURL& url) = 0;
 };
 
 }  // namespace autofill