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

components/autofill/core/browser/autofill_client.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_CLIENT_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_CLIENT_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 171 matching lines @@
 
   // If the context is secure.
   virtual bool IsContextSecure(const GURL& form_origin) = 0;
 
   // Whether it is appropriate to show a signin promo for this user.
   virtual bool ShouldShowSigninPromo() = 0;
 
   // Starts the signin flow. Should not be called if ShouldShowSigninPromo()
   // returns false.
   virtual void StartSigninFlow() = 0;
+
+  // Shows the explanation of http not secure warning message.
+  virtual void ShowHttpNotSecureExplanation() = 0;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_CLIENT_H_