Implement app banner info bars on desktop.

chrome/browser/ui/tab_helpers.cc

 // Copyright 2014 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/tab_helpers.h"
 
 #include "base/command_line.h"
+#include "chrome/browser/banners/app_banner_manager_desktop.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/chrome_content_settings_client.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/engagement/site_engagement_helper.h"
 #include "chrome/browser/engagement/site_engagement_service.h"
 #include "chrome/browser/external_protocol/external_protocol_observer.h"
 #include "chrome/browser/favicon/favicon_helper.h"
 #include "chrome/browser/history/history_tab_helper.h"
 #include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/infobars/infobar_service.h"
@@ skipping 176 matching lines @@
   TabDialogs::CreateForWebContents(web_contents);
   ThumbnailTabHelper::CreateForWebContents(web_contents);
   web_modal::WebContentsModalDialogManager::CreateForWebContents(web_contents);
 #endif
   ExternalProtocolObserver::CreateForWebContents(web_contents);
 
 #if defined(OS_WIN)
   MetroPinTabHelper::CreateForWebContents(web_contents);
 #endif
 
+#if !defined(OS_ANDROID)
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableAddToShelf)) {
+    banners::AppBannerManagerDesktop::CreateForWebContents(web_contents);
+  }
+#endif
+
   // --- Feature tab helpers behind flags ---
 
 #if defined(ENABLE_CAPTIVE_PORTAL_DETECTION)
   CaptivePortalTabHelper::CreateForWebContents(web_contents);
 #endif
 
 #if defined(ENABLE_EXTENSIONS)
   extensions::TabHelper::CreateForWebContents(web_contents);
 #endif
 
@@ skipping 15 matching lines @@
     dom_distiller::WebContentsMainFrameObserver::CreateForWebContents(
         web_contents);
   }
 
   if (predictors::ResourcePrefetchPredictorFactory::GetForProfile(
       web_contents->GetBrowserContext())) {
     predictors::ResourcePrefetchPredictorTabHelper::CreateForWebContents(
         web_contents);
   }
 }