[sync] WebContentsObserver based sessions notifications

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 <memory>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 19 matching lines @@
 #include "chrome/browser/password_manager/chrome_password_manager_client.h"
 #include "chrome/browser/permissions/permission_request_manager.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
 #include "chrome/browser/predictors/resource_prefetch_predictor_tab_helper.h"
 #include "chrome/browser/prerender/prerender_tab_helper.h"
 #include "chrome/browser/previews/previews_infobar_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/browser/ssl/security_state_tab_helper.h"
 #include "chrome/browser/subresource_filter/chrome_subresource_filter_client.h"
+#include "chrome/browser/sync/sessions/sync_sessions_router_tab_helper.h"
+#include "chrome/browser/sync/sessions/sync_sessions_web_contents_router_factory.h"
 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
 #include "chrome/browser/tracing/navigation_tracing.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/autofill/chrome_autofill_client.h"
 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 #include "chrome/browser/ui/navigation_correction_tab_observer.h"
 #include "chrome/browser/ui/passwords/manage_passwords_ui_controller.h"
 #include "chrome/browser/ui/pdf/chrome_pdf_web_contents_helper_client.h"
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
@@ skipping 143 matching lines @@
   PreviewsInfoBarTabHelper::CreateForWebContents(web_contents);
   SearchTabHelper::CreateForWebContents(web_contents);
   SearchEngineTabHelper::CreateForWebContents(web_contents);
   SecurityStateTabHelper::CreateForWebContents(web_contents);
   if (SiteEngagementService::IsEnabled())
     SiteEngagementService::Helper::CreateForWebContents(web_contents);
   std::unique_ptr<ChromeSubresourceFilterClient> subresource_filter_client(
       new ChromeSubresourceFilterClient(web_contents));
   subresource_filter::ContentSubresourceFilterDriverFactory::
       CreateForWebContents(web_contents, std::move(subresource_filter_client));
+  sync_sessions::SyncSessionsRouterTabHelper::CreateForWebContents(
+      web_contents,
+      sync_sessions::SyncSessionsWebContentsRouterFactory::GetForProfile(
+          Profile::FromBrowserContext(web_contents->GetBrowserContext())));
   // TODO(vabr): Remove TabSpecificContentSettings from here once their function
   // is taken over by ChromeContentSettingsClient. http://crbug.com/387075
   TabSpecificContentSettings::CreateForWebContents(web_contents);
   if (content::IsBrowserSideNavigationEnabled())
     MixedContentSettingsTabHelper::CreateForWebContents(web_contents);
   metrics::RendererUptimeWebContentsObserver::CreateForWebContents(
       web_contents);
 
   // --- Platform-specific tab helpers ---
 
@@ skipping 70 matching lines @@
 
   if (predictors::ResourcePrefetchPredictorFactory::GetForProfile(
       web_contents->GetBrowserContext())) {
     predictors::ResourcePrefetchPredictorTabHelper::CreateForWebContents(
         web_contents);
   }
 
   if (tracing::NavigationTracingObserver::IsEnabled())
     tracing::NavigationTracingObserver::CreateForWebContents(web_contents);
 }