Add experiment for having a "Beta forum" link in the help menu.

chrome/browser/ui/browser_command_controller.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/ui/browser_command_controller.h"
 
 #include <stddef.h>
 
 #include <string>
 
@@ skipping 603 matching lines @@
       break;
     case IDC_VIEW_INCOMPATIBILITIES:
       ShowConflicts(browser_);
       break;
     case IDC_HELP_PAGE_VIA_KEYBOARD:
       ShowHelp(browser_, HELP_SOURCE_KEYBOARD);
       break;
     case IDC_HELP_PAGE_VIA_MENU:
       ShowHelp(browser_, HELP_SOURCE_MENU);
       break;
+    case IDC_SHOW_BETA_FORUM:
+      ShowBetaForum(browser_);
+      break;
     case IDC_SHOW_SIGNIN:
       ShowBrowserSigninOrSettings(
           browser_, signin_metrics::AccessPoint::ACCESS_POINT_MENU);
       break;
     case IDC_DISTILL_PAGE:
       DistillCurrentPage(browser_);
       break;
 #if defined(OS_CHROMEOS)
     case IDC_TOUCH_HUD_PROJECTION_TOGGLE:
       if (ash_util::IsRunningInMash()) {
@@ skipping 153 matching lines @@
       << "Ought to never have browser for the system profile.";
   const bool normal_window = browser_->is_type_tabbed();
   UpdateOpenFileState(&command_updater_);
   UpdateCommandsForDevTools();
   command_updater_.UpdateCommandEnabled(IDC_TASK_MANAGER, CanOpenTaskManager());
   command_updater_.UpdateCommandEnabled(IDC_SHOW_HISTORY, !guest_session);
   command_updater_.UpdateCommandEnabled(IDC_SHOW_DOWNLOADS, true);
   command_updater_.UpdateCommandEnabled(IDC_HELP_MENU, true);
   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_KEYBOARD, true);
   command_updater_.UpdateCommandEnabled(IDC_HELP_PAGE_VIA_MENU, true);
+  command_updater_.UpdateCommandEnabled(IDC_SHOW_BETA_FORUM, true);
   command_updater_.UpdateCommandEnabled(IDC_BOOKMARKS_MENU, !guest_session);
   command_updater_.UpdateCommandEnabled(IDC_RECENT_TABS_MENU,
                                         !guest_session &&
                                         !profile()->IsOffTheRecord());
   command_updater_.UpdateCommandEnabled(IDC_CLEAR_BROWSING_DATA,
                                         !guest_session);
 #if defined(OS_CHROMEOS)
   command_updater_.UpdateCommandEnabled(IDC_TAKE_SCREENSHOT, true);
   command_updater_.UpdateCommandEnabled(IDC_TOUCH_HUD_PROJECTION_TOGGLE, true);
 #else
@@ skipping 343 matching lines @@
 
 BrowserWindow* BrowserCommandController::window() {
   return browser_->window();
 }
 
 Profile* BrowserCommandController::profile() {
   return browser_->profile();
 }
 
 }  // namespace chrome