[Password Generation] Send a boolean flag of whether user changed generated password

ios/chrome/browser/passwords/password_generation_agent.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 <stddef.h>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_block.h"
@@ skipping 338 matching lines @@
   [self hideAlert];
   __weak PasswordGenerationAgent* weakSelf = self;
   id completionHandler = ^(BOOL success) {
     if (!success)
       return;
     PasswordGenerationAgent* strongSelf = weakSelf;
     if (!strongSelf)
       return;
     if (strongSelf->_passwordManager) {
       // Might be null in tests.
-      strongSelf->_passwordManager->SetHasGeneratedPasswordForForm(
-          strongSelf->_passwordManagerDriver,
-          *strongSelf->_possibleAccountCreationForm, true);
+      strongSelf->_passwordManager->OnPresaveGeneratedPassword(
+          *strongSelf->_possibleAccountCreationForm);
     }
     if (strongSelf->_accessoryViewReadyCompletion) {
       strongSelf->_accessoryViewReadyCompletion(
           [strongSelf currentAccessoryView], strongSelf);
     }
   };
   [_javaScriptPasswordManager fillPasswordForm:[self passwordGenerationFormName]
                          withGeneratedPassword:_generatedPassword
                              completionHandler:completionHandler];
 }
@@ skipping 64 matching lines @@
   DCHECK(_accessoryViewReadyCompletion);
   _accessoryViewReadyCompletion([self currentAccessoryView], self);
 }
 
 - (BOOL)getLogKeyboardAccessoryMetrics {
   // Only store metrics for regular Autofill, not passwords.
   return NO;
 }
 
 @end