Remove #pragma once from chrome/browser/sync

chrome/browser/sync/glue/synced_window_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_SYNCED_WINDOW_DELEGATE_H_
 #define CHROME_BROWSER_SYNC_GLUE_SYNCED_WINDOW_DELEGATE_H_
-#pragma once
 
 #include <set>
 
 #include "chrome/browser/sessions/session_id.h"
 
 namespace browser_sync {
 
 class SyncedTabDelegate;
 
 // A SyncedWindowDelegate is used to insulate the sync code from depending
@@ skipping 48 matching lines @@
   // Return true if we are currently restoring sessions asynchronously.
   virtual bool IsSessionRestoreInProgress() const = 0;
 
  protected:
   virtual ~SyncedWindowDelegate() {}
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_SYNCED_WINDOW_DELEGATE_H_