Don't autofill credit cards on non-secure pages

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 <vector>
 
 #include "base/callback_forward.h"
@@ skipping 155 matching lines @@
   virtual void DidFillOrPreviewField(
       const base::string16& autofilled_value,
       const base::string16& profile_full_name) = 0;
 
   // Informs the client that a user gesture has been observed.
   virtual void OnFirstUserGestureObserved() = 0;
 
   // Opens |url| with the supplied |disposition|.
   virtual void LinkClicked(const GURL& url,
                            WindowOpenDisposition disposition) = 0;
+
+ // If the context is secure (secure https, no mixed content)
+ virtual bool IsContextSecure() = 0;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_CLIENT_H_