Transfer v8 snapshot files as file descriptors to child processes on Posix

content/shell/browser/shell_content_browser_client.h

 // Copyright 2013 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_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 75 matching lines @@
     return shell_browser_main_parts_;
   }
 
  private:
   ShellBrowserContext* ShellBrowserContextForBrowserContext(
       BrowserContext* content_browser_context);
 
   scoped_ptr<ShellResourceDispatcherHostDelegate>
       resource_dispatcher_host_delegate_;
 
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  base::ScopedFD v8_natives_fd_;
+  base::ScopedFD v8_snapshot_fd_;
+#endif
+
   ShellBrowserMainParts* shell_browser_main_parts_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_BROWSER_SHELL_CONTENT_BROWSER_CLIENT_H_