Stop using chrome-sandbox to determine real pids

content/public/common/child_process_sandbox_support_linux.h

 // Copyright (c) 2012 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_PUBLIC_COMMON_CHILD_PROCESS_SANDBOX_SUPPORT_LINUX_H_
 #define CONTENT_PUBLIC_COMMON_CHILD_PROCESS_SANDBOX_SUPPORT_LINUX_H_
 
 #include <stdint.h>
 #include <string>
 
+#include "base/process/process_handle.h"
 #include "content/common/content_export.h"
 #include "ppapi/c/trusted/ppb_browser_font_trusted.h"
 
 namespace content {
 
 // Returns a file descriptor for a shared memory segment.  The
 // executable flag indicates that the caller intends to use mprotect
 // with PROT_EXEC after making a mapping, but not that it intends to
 // mmap with PROT_EXEC in the first place.  (Some systems, such as
 // ChromeOS, disallow PROT_EXEC in mmap on /dev/shm files but do allow
@@ skipping 22 matching lines @@
 //   offset: offset into the table or entire font where loading should start.
 //     The offset must be between 0 and 1 GB - 1.
 //   output: a buffer of size output_length that gets the data.  can be 0, in
 //     which case output_length will be set to the required size in bytes.
 //   output_length: size of output, if it's not 0.
 //
 //   returns: true on success.
 CONTENT_EXPORT bool GetFontTable(int fd, uint32_t table_tag, off_t offset,
                                  uint8_t* output, size_t* output_length);
 
+// Asks the browser process to write the calling process's PID (as seen from
+// the browser process's namespace) to fd, which should be the writing end of
+// a pipe shared with the zygote process.
+// Additionally, if pid is not NULL, then the PID value is stored there;
+// otherwise, the PID value is guaranteed to never be passed to the caller's
+// address space.
+// Returns true on success.
+CONTENT_EXPORT bool SendRealPidToZygote(int fd, base::ProcessId* pid);
+
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_CHILD_PROCESS_SANDBOX_SUPPORT_LINUX_H_