Terminate plugin processes on a delayed task to allow the plugins to shutdown gracefully, i.e. NP...

content/browser/child_process_launcher.h

Index: content/browser/child_process_launcher.h
===================================================================
--- content/browser/child_process_launcher.h	(revision 86295)
+++ content/browser/child_process_launcher.h	(working copy)
@@ -60,6 +60,10 @@
   // this after the process has started.
   void SetProcessBackgrounded(bool background);
 
+  // Controls whether the child process should be terminated on browser
+  // shutdown.
+  void SetTerminateChildOnShutdown(bool terminate_on_shutdown);
+
  private:
   class Context;