[Mac] Passwords: Don't always prompt to access passwords saved by other browsers

chrome/browser/password_manager/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 "chrome/browser/password_manager/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 308 matching lines @@
       continue;
 
     bool ssl_valid = iter->origin.SchemeIsSecure() && !had_ssl_error;
     PasswordFormManager* manager =
         new PasswordFormManager(delegate_->GetProfile(),
                                 this,
                                 web_contents(),
                                 *iter,
                                 ssl_valid);
     pending_login_managers_.push_back(manager);
-    manager->FetchMatchingLoginsFromPasswordStore();
+
+    // Avoid prompting the user for access to a password if they don't have
+    // password saving enabled.
+    PasswordStore::AuthorizationPromptPolicy prompt_policy =
+        *password_manager_enabled_ ? PasswordStore::ALLOW_PROMPT
+                                   : PasswordStore::DISALLOW_PROMPT;
+
+    manager->FetchMatchingLoginsFromPasswordStore(prompt_policy);
   }
 }
 
 bool PasswordManager::ShouldShowSavePasswordInfoBar() const {
   return provisional_save_manager_->IsNewLogin() &&
          !provisional_save_manager_->HasGeneratedPassword() &&
          !provisional_save_manager_->IsPendingCredentialsPublicSuffixMatch();
 }
 
 void PasswordManager::OnPasswordFormsRendered(
@@ skipping 112 matching lines @@
   }
 
   ManagePasswordsBubbleUIController* manage_passwords_bubble_ui_controller =
       ManagePasswordsBubbleUIController::FromWebContents(web_contents());
   if (manage_passwords_bubble_ui_controller &&
       CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableSavePasswordBubble)) {
     manage_passwords_bubble_ui_controller->OnPasswordAutofilled(best_matches);
   }
 }