Remove #pragma once from content

content/common/injection_test_dll.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_INJECTION_TEST_DLL_H_
 #define CONTENT_COMMON_INJECTION_TEST_DLL_H_
-#pragma once
 
 // This file defines the entry points for any DLL that can be loaded into the
 // renderer or plugin process for the purposes of testing. The DLL code must
 // define TEST_INJECTION_DLL so the entry point definitions cause the linker
 // to generate exported functions.
 
 const char kRenderTestCall[] = "RunRendererTests";
 const char kPluginTestCall[] = "RunPluginTests";
 
 extern "C" {
 #ifdef TEST_INJECTION_DLL
 BOOL extern __declspec(dllexport) __cdecl RunRendererTests(int* test_count);
 BOOL extern __declspec(dllexport) __cdecl RunPluginTests(int* test_count);
 #else
 typedef BOOL (__cdecl *RunRendererTests)(int* test_count);
 typedef BOOL (__cdecl *RunPluginTests)(int* test_count);
 #endif
 }
 
 #endif  // CONTENT_COMMON_INJECTION_TEST_DLL_H_