Implement the V2 sandbox in the process launcher.

content/browser/child_process_launcher_helper.h

 // Copyright 2017 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_BROWSER_CHILD_PROCESS_LAUNCHER_HELPER_H_
 #define CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_HELPER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 14 matching lines @@
 #if defined(OS_WIN)
 #include "sandbox/win/src/sandbox_types.h"
 #else
 #include "content/public/browser/file_descriptor_info.h"
 #endif
 
 #if defined(OS_LINUX)
 #include "content/public/common/zygote_handle.h"
 #endif
 
+#if defined(OS_MACOSX)
+#include "sandbox/mac/seatbelt_exec.h"
+#endif
+
 namespace base {
 class CommandLine;
 }
 
 namespace content {
 
 class ChildProcessLauncher;
 class FileDescriptorInfo;
 class SandboxedProcessLauncherDelegate;
 
@@ skipping 146 matching lines @@
   const int child_process_id_;
   const BrowserThread::ID client_thread_id_;
   base::TimeTicks begin_launch_time_;
   std::unique_ptr<base::CommandLine> command_line_;
   std::unique_ptr<SandboxedProcessLauncherDelegate> delegate_;
   base::WeakPtr<ChildProcessLauncher> child_process_launcher_;
   mojo::edk::ScopedPlatformHandle mojo_client_handle_;
   mojo::edk::ScopedPlatformHandle mojo_server_handle_;
   bool terminate_on_shutdown_;
 
+#if defined(OS_MACOSX)
+  std::unique_ptr<sandbox::SeatbeltExecClient> seatbelt_exec_client_;
+#endif  // defined(OS_MACOSX)
+
 #if defined(OS_ANDROID)
   base::android::ScopedJavaGlobalRef<jobject> java_peer_;
 #endif
 };
 
 }  // namespace internal
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_CHILD_PROCESS_LAUNCHER_HELPER_H_