[sessions] Properly namespace recently-componentized TabRestore code

chrome/browser/app_controller_mac.mm

 // 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.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 859 matching lines @@
   }
 
   // No profiles or active downloads found, okay to exit.
   return YES;
 }
 
 // Called to determine if we should enable the "restore tab" menu item.
 // Checks with the TabRestoreService to see if there's anything there to
 // restore and returns YES if so.
 - (BOOL)canRestoreTab {
-  TabRestoreService* service =
+  sessions::TabRestoreService* service =
       TabRestoreServiceFactory::GetForProfile([self lastProfile]);
   return service && !service->entries().empty();
 }
 
 // Called from the AppControllerProfileObserver every time a profile is deleted.
 - (void)profileWasRemoved:(const base::FilePath&)profilePath {
   // If the lastProfile has been deleted, the profile manager has
   // already loaded a new one, so the pointer needs to be updated;
   // otherwise we will try to start up a browser window with a pointer
   // to the old profile.
@@ skipping 819 matching lines @@
 
 //---------------------------------------------------------------------------
 
 namespace app_controller_mac {
 
 bool IsOpeningNewWindow() {
   return g_is_opening_new_window;
 }
 
 }  // namespace app_controller_mac