Remove #pragma once from content

content/common/child_process_sandbox_support_impl_linux.h

 // Copyright (c) 2011 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_PROCESS_SANDBOX_SUPPORT_IMPL_LINUX_H_
 #define CONTENT_COMMON_CHILD_PROCESS_SANDBOX_SUPPORT_IMPL_LINUX_H_
-#pragma once
 
 #include "base/global_descriptors_posix.h"
 #include "content/public/common/child_process_sandbox_support_linux.h"
 #include "content/public/common/content_descriptors.h"
 
 namespace WebKit {
 struct WebFontFamily;
 struct WebFontRenderStyle;
 }
 
@@ skipping 15 matching lines @@
 void GetRenderStyleForStrike(const char* family, int sizeAndStyle,
                              WebKit::WebFontRenderStyle* out);
 
 inline int GetSandboxFD() {
   return kSandboxIPCChannel + base::GlobalDescriptors::kBaseDescriptor;
 }
 
 };  // namespace content
 
 #endif  // CONTENT_COMMON_CHILD_PROCESS_SANDBOX_SUPPORT_IMPL_LINUX_H_