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

chrome/browser/ui/toolbar/app_menu_model.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/toolbar/app_menu_model.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/command_line.h"
@@ skipping 50 matching lines @@
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/layout.h"
 #include "ui/base/models/button_menu_item_model.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 
+#if defined(GOOGLE_CHROME_BUILD)
+#include "base/feature_list.h"
+#endif
+
 #if defined(OS_CHROMEOS)
 #include "chromeos/chromeos_switches.h"
 #endif
 
 #if defined(OS_WIN)
 #include "base/win/shortcut.h"
 #include "base/win/windows_version.h"
 #include "chrome/browser/win/enumerate_modules_model.h"
 #include "content/public/browser/gpu_data_manager.h"
 #endif
@@ skipping 41 matching lines @@
   AddItemWithStringId(IDC_ZOOM_PLUS, IDS_ZOOM_PLUS);
   AddItemWithStringId(IDC_ZOOM_NORMAL, IDS_ZOOM_NORMAL);
   AddItemWithStringId(IDC_ZOOM_MINUS, IDS_ZOOM_MINUS);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // HelpMenuModel
 
 #if defined(GOOGLE_CHROME_BUILD)
 
+const base::Feature kIncludeBetaForumMenuItem{
+    "IncludeBetaForumMenuItem", base::FEATURE_DISABLED_BY_DEFAULT};
+
 class AppMenuModel::HelpMenuModel : public ui::SimpleMenuModel {
  public:
   HelpMenuModel(ui::SimpleMenuModel::Delegate* delegate,
                 Browser* browser)
       : SimpleMenuModel(delegate) {
     Build(browser);
   }
 
  private:
   void Build(Browser* browser) {
 #if defined(OS_CHROMEOS) && defined(OFFICIAL_BUILD)
     int help_string_id = IDS_GET_HELP;
 #else
     int help_string_id = IDS_HELP_PAGE;
 #endif
     AddItem(IDC_ABOUT, l10n_util::GetStringUTF16(IDS_ABOUT));
     AddItemWithStringId(IDC_HELP_PAGE_VIA_MENU, help_string_id);
+    if (base::FeatureList::IsEnabled(kIncludeBetaForumMenuItem))
+      AddItem(IDC_SHOW_BETA_FORUM, l10n_util::GetStringUTF16(IDS_BETA_FORUM));
     if (browser_defaults::kShowHelpMenuItemIcon) {
       ui::ResourceBundle& rb = ResourceBundle::GetSharedInstance();
       SetIcon(GetIndexOfCommandId(IDC_HELP_PAGE_VIA_MENU),
               rb.GetNativeImageNamed(IDR_HELP_MENU));
     }
     AddItemWithStringId(IDC_FEEDBACK, IDS_FEEDBACK);
   }
 
   DISALLOW_COPY_AND_ASSIGN(HelpMenuModel);
 };
@@ skipping 376 matching lines @@
 
     // Help menu.
     case IDC_HELP_PAGE_VIA_MENU:
       base::RecordAction(UserMetricsAction("ShowHelpTabViaWrenchMenu"));
 
       if (!uma_action_recorded_)
         UMA_HISTOGRAM_MEDIUM_TIMES("WrenchMenu.TimeToAction.HelpPage", delta);
       LogMenuAction(MENU_ACTION_HELP_PAGE_VIA_MENU);
       break;
   #if defined(GOOGLE_CHROME_BUILD)
+    case IDC_SHOW_BETA_FORUM:
+      if (!uma_action_recorded_)
+        UMA_HISTOGRAM_MEDIUM_TIMES("WrenchMenu.TimeToAction.BetaForum", delta);
+      LogMenuAction(MENU_ACTION_BETA_FORUM);
+      break;
     case IDC_FEEDBACK:
       if (!uma_action_recorded_)
         UMA_HISTOGRAM_MEDIUM_TIMES("WrenchMenu.TimeToAction.Feedback", delta);
       LogMenuAction(MENU_ACTION_FEEDBACK);
       break;
   #endif
 
     case IDC_TOGGLE_REQUEST_TABLET_SITE:
       if (!uma_action_recorded_) {
         UMA_HISTOGRAM_MEDIUM_TIMES("WrenchMenu.TimeToAction.RequestTabletSite",
@@ skipping 287 matching lines @@
                        browser_->tab_strip_model()->GetActiveWebContents())
                        ->GetZoomPercent();
   }
   zoom_label_ = base::FormatPercent(zoom_percent);
 }
 
 void AppMenuModel::OnZoomLevelChanged(
     const content::HostZoomMap::ZoomLevelChange& change) {
   UpdateZoomControls();
 }