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

chrome/browser/child_process_launcher.h

 // Copyright (c) 2009 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 CHROME_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 #define CHROME_BROWSER_CHILD_PROCESS_LAUNCHER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/process_util.h"
@@ skipping 32 matching lines @@
       CommandLine* cmd_line,
       Client* client);
   ~ChildProcessLauncher();
 
   // True if the process is being launched and so the handle isn't available.
   bool IsStarting();
 
   // 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);

[brettw, 2010/12/03 01:01:54]

If we move the base function to a static function in here, this non-static
version should probably be named GetTerminationStatus. However, if you find we
don't even need the static version, it would be nice to only have one (I'm not
sure, I didn't check if there are external callers that don't use
ChildProcessLauncher).

 
   // Changes whether the process runs in the background or not.  Only call
   // this after the process has started.
   void SetProcessBackgrounded(bool background);
 
  private:
   class Context;
 
   scoped_refptr<Context> context_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildProcessLauncher);
 };
 
 #endif  // CHROME_BROWSER_CHILD_PROCESS_LAUNCHER_H_