Observe visibility of password inputs, for HTTP-bad phase 1

components/autofill/content/public/interfaces/autofill_driver.mojom

 // Copyright 2016 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.
 
 module autofill.mojom;
 
 import "components/autofill/content/public/interfaces/autofill_types.mojom";
 import "mojo/common/common_custom_types.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 
@@ skipping 91 matching lines @@
   PresaveGeneratedPassword(PasswordForm password_form);
 
   // Instructs the browser that form no longer contains a generated password and
   // the presaved form should be removed.
   PasswordNoLongerGenerated(PasswordForm password_form);
 
   // Sends the outcome of HTML parsing based form classifier that detects the
   // forms where password generation should be available.
   SaveGenerationFieldDetectedByClassifier(
       PasswordForm password_form, mojo.common.mojom.String16 generation_field);
+
+  // Notification that a password field in the frame is visible.
+  PasswordFieldVisible();
 };