Deprecate CredentialRequestOptions.unmediated in favor mediation enum

components/password_manager/content/common/credential_manager.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 password_manager.mojom;
 
 import "url/mojo/origin.mojom";
 import "url/mojo/url.mojom";
 
 enum CredentialType {
   EMPTY,
   PASSWORD,
   FEDERATED
 };
 
+enum CredentialMediationRequirement {
+  kSilent,
+  kOptional,
+  kRequired
+};
+
 enum CredentialManagerError {
   SUCCESS,
   DISABLED,
   PENDINGREQUEST,
   PASSWORDSTOREUNAVAILABLE,
   UNKNOWN
 };
 
 struct CredentialInfo {
   CredentialType type;
   string id;
   string name;
   url.mojom.Url icon;
   string password;
   url.mojom.Origin federation;
 };
 
 interface CredentialManager {
   // Store credential. For navigator.credentials.store().
   Store(CredentialInfo credential) => ();
 
   // Require user mediation. For navigator.credentials.requireUserMediation().
   RequireUserMediation() => ();
 
   // Get Credential. For navigator.credentials.get().
   // The result callback will return a non-null and valid CredentialInfo
   // if succeeded, or null with a CredentialManagerError if failed.
-  Get(bool zero_click_only,
+  Get(CredentialMediationRequirement mediation,
       bool include_passwords,
       array<url.mojom.Url> federations)
       => (CredentialManagerError error, CredentialInfo? credential);
 };