Remove #pragma once from content

content/common/child_thread.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 CONTENT_COMMON_CHILD_THREAD_H_
 #define CONTENT_COMMON_CHILD_THREAD_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/shared_memory.h"
 #include "base/tracked_objects.h"
 #include "content/common/content_export.h"
 #include "content/common/message_router.h"
 #include "ipc/ipc_message.h"  // For IPC_MESSAGE_LOG_ENABLED.
 #include "webkit/glue/resource_loader_bridge.h"
 
@@ skipping 126 matching lines @@
   MessageLoop* message_loop_;
 
   scoped_ptr<FileSystemDispatcher> file_system_dispatcher_;
 
   scoped_ptr<QuotaDispatcher> quota_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildThread);
 };
 
 #endif  // CONTENT_COMMON_CHILD_THREAD_H_