[Mac] Add a perf test that counts the number of Mach ports in the browser.

chrome/browser/automation/testing_automation_provider.h

 // 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.
 
 #ifndef CHROME_BROWSER_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_
 #define CHROME_BROWSER_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 71 matching lines @@
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // IPC Message callbacks.
   void CloseBrowser(int handle, IPC::Message* reply_message);
   void CloseBrowserAsync(int browser_handle);
   void ActivateTab(int handle, int at_index, int* status);
   void AppendTab(int handle, const GURL& url, IPC::Message* reply_message);
   void AppendBackgroundTab(int handle, const GURL& url,
                            IPC::Message* reply_message);
+  void GetMachPortCount(int* port_count);
   void GetActiveTabIndex(int handle, int* active_tab_index);
   void CloseTab(int tab_handle, bool wait_until_closed,
                 IPC::Message* reply_message);
   void GetCookies(const GURL& url, int handle, int* value_size,
                   std::string* value);
   void SetCookie(const GURL& url,
                  const std::string& value,
                  int handle,
                  int* response_value);
   void DeleteCookie(const GURL& url, const std::string& cookie_name,
@@ skipping 1426 matching lines @@
   // Used to enumerate browser profiles.
   scoped_refptr<ImporterList> importer_list_;
 
   // The stored data for the ImportSettings operation.
   ImportSettingsData import_settings_data_;
 
   DISALLOW_COPY_AND_ASSIGN(TestingAutomationProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_