Improve logging in password manager internals page

components/password_manager/core/browser/password_manager.cc

 // Copyright (c) 2012 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.
 
 #include "components/password_manager/core/browser/password_manager.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
@@ skipping 469 matching lines @@
 
     // Looks like a successful login attempt. Either show an infobar or
     // automatically save the login data. We prompt when the user hasn't
     // already given consent, either through previously accepting the infobar
     // or by having the browser generate the password.
     provisional_save_manager_->SubmitPassed();
 
     if (ShouldPromptUserToSavePassword()) {
       if (logger)
         logger->LogMessage(Logger::STRING_DECISION_ASK);
-      client_->PromptUserToSavePassword(provisional_save_manager_.Pass());
+      if (client_->PromptUserToSavePassword(provisional_save_manager_.Pass())) {
+        if (logger)
+          logger->LogMessage(Logger::STRING_SHOW_PASSWORD_PROMPT);
+      }
     } else {
       if (logger)
         logger->LogMessage(Logger::STRING_DECISION_SAVE);
       provisional_save_manager_->Save();
 
       if (provisional_save_manager_->HasGeneratedPassword()) {
         client_->AutomaticPasswordSave(provisional_save_manager_.Pass());
       } else {
         provisional_save_manager_.reset();
       }
@@ skipping 79 matching lines @@
           observers_,
           OnAutofillDataAvailable(preferred_match.username_value,
                                   preferred_match.password_value));
       break;
   }
 
   client_->PasswordWasAutofilled(best_matches);
 }
 
 }  // namespace password_manager