Stop using chrome-sandbox to determine real pids

content/public/common/child_process_sandbox_support_linux.h

Index: content/public/common/child_process_sandbox_support_linux.h
diff --git a/content/public/common/child_process_sandbox_support_linux.h b/content/public/common/child_process_sandbox_support_linux.h
index 9e1cde273ad35201ff0353fec356ca8bf134b9dd..d9f96c71638fb1573cb2eb5f25edca01bb9002f4 100644
--- a/content/public/common/child_process_sandbox_support_linux.h
+++ b/content/public/common/child_process_sandbox_support_linux.h
@@ -8,6 +8,7 @@
 #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"
 
@@ -50,6 +51,15 @@ CONTENT_EXPORT int MatchFontWithFallback(
 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_