[Sync] Fix namespaces for the sync_sessions component.

chrome/browser/sync/sessions/notification_service_sessions_router.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/sync/sessions/notification_service_sessions_router.h"
 
 #include "base/logging.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 21 matching lines @@
 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
 #endif
 
 #if defined(ENABLE_EXTENSIONS)
 #include "chrome/browser/extensions/tab_helper.h"
 #endif
 
 using content::NavigationController;
 using content::WebContents;
 
-namespace browser_sync {
+namespace sync_sessions {
 
 namespace {
 
 SyncedTabDelegate* GetSyncedTabDelegateFromWebContents(
     content::WebContents* web_contents) {
 #if BUILDFLAG(ANDROID_JAVA_UI)
   TabAndroid* tab = TabAndroid::FromWebContents(web_contents);
   return tab ? tab->GetSyncedTabDelegate() : nullptr;
 #else
   SyncedTabDelegate* delegate =
       TabContentsSyncedTabDelegate::FromWebContents(web_contents);
   return delegate;
 #endif
 }
 
 }  // namespace
 
 NotificationServiceSessionsRouter::NotificationServiceSessionsRouter(
     Profile* profile,
-    sync_sessions::SyncSessionsClient* sessions_client,
+    SyncSessionsClient* sessions_client,
     const syncer::SyncableService::StartSyncFlare& flare)
     : handler_(NULL),
       profile_(profile),
       sessions_client_(sessions_client),
       flare_(flare),
       weak_ptr_factory_(this) {
   registrar_.Add(this, chrome::NOTIFICATION_TAB_PARENTED,
       content::NotificationService::AllSources());
   registrar_.Add(this, content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
       content::NotificationService::AllSources());
@@ skipping 130 matching lines @@
     LocalSessionEventHandler* handler) {
   DCHECK(!handler_);
   handler_ = handler;
 }
 
 void NotificationServiceSessionsRouter::Stop() {
   weak_ptr_factory_.InvalidateWeakPtrs();
   handler_ = NULL;
 }
 
-}  // namespace browser_sync
+}  // namespace sync_sessions