[ios] Removed keyCode from FormActivityRegistered API.

ios/chrome/browser/passwords/password_generation_agent_unittest.mm

 // 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.
 
 #import "ios/chrome/browser/passwords/password_generation_agent.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "base/logging.h"
@@ skipping 257 matching lines @@
 
   // Simulates an event on the specified form/field.
   void SimulateFormActivity(NSString* form_name,
                             NSString* field_name,
                             NSString* type) {
     [accessory_view_controller_ webState:test_web_state_.get()
         didRegisterFormActivityWithFormNamed:base::SysNSStringToUTF8(form_name)
                                    fieldName:base::SysNSStringToUTF8(field_name)
                                         type:base::SysNSStringToUTF8(type)
                                        value:""
-                                     keyCode:web::WebStateObserver::
-                                                 kInvalidFormKeyCode
                                 inputMissing:false];
   }
 
   // Returns a mock of JsSuggestionManager.
   id mock_js_suggestion_manager() { return mock_js_suggestion_manager_; }
 
   // Returns a mock of JsPasswordManager.
   id mock_js_password_manager() { return mock_js_password_manager_; }
 
   MockPasswordsUiDelegate* mock_ui_delegate() { return mock_ui_delegate_; }
@@ skipping 224 matching lines @@
   [agent() showSavedPasswords:nil];
   EXPECT_EQ(NO, mock_ui_delegate().UIShown);
 
   GenericChromeCommand* command = base::mac::ObjCCast<GenericChromeCommand>(
       g_chrome_execute_command_sender);
   EXPECT_TRUE(command);
   EXPECT_EQ(IDC_SHOW_SAVE_PASSWORDS_SETTINGS, command.tag);
 }
 
 }  // namespace