Expose the sandbox related code through the content API. I did a bit of cleanup while I was doing...

content/app/startup_helper_win.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_APP_STARTUP_HELPER_WIN_H_
-#define CONTENT_APP_STARTUP_HELPER_WIN_H_
-#pragma once
-
-class CommandLine;
-
-namespace sandbox {
-struct SandboxInterfaceInfo;
-}
-
-// This file contains functions that any embedder that's not using ContentMain
-// will want to call at startup.
-namespace content {
-
-// Initializes the sandbox code and turns on DEP. Note: This function
-// must be *statically* linked into the executable (along with the static
-// sandbox library); it will not work correctly if it is exported from a
-// DLL and linked in.
-void InitializeSandboxInfo(sandbox::SandboxInterfaceInfo* sandbox_info);
-
-// Register the invalid param handler and pure call handler to be able to
-// notify breakpad when it happens.
-void RegisterInvalidParamHandler();
-
-// Sets up the CRT's debugging macros to output to stdout.
-void SetupCRT(const CommandLine& command_line);
-
-}  // namespace content
-
-#endif  // CONTENT_APP_STARTUP_HELPER_WIN_H_