This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/child_process_launcher.h

Index: chrome/browser/child_process_launcher.h
diff --git a/chrome/browser/child_process_launcher.h b/chrome/browser/child_process_launcher.h
index 95fb6ea32d95b298bc1dfb2aa6c87ef7d4b65b59..a3add53715020288958b425ae2339db1fa4d4ee5 100644
--- a/chrome/browser/child_process_launcher.h
+++ b/chrome/browser/child_process_launcher.h
@@ -50,8 +50,11 @@ class ChildProcessLauncher {
   // Getter for the process handle.  Only call after the process has started.
   base::ProcessHandle GetHandle();
 
-  // Call this when the process exits to know if a process crashed or not.
-  bool DidProcessCrash();
+  // Call this when the child process exits to know what happened to
+  // it.  |exit_code| is the exit code of the process if it exited
+  // (e.g. status from waitpid if on posix, from GetExitCodeProcess on
+  // Windows). |exit_code| may be NULL.
+  base::TerminationStatus GetChildTerminationStatus(int* exit_code);
 
   // Changes whether the process runs in the background or not.  Only call
   // this after the process has started.