Revert 199840 "Lower the priority of shared workers that aren't ..."

trunk/src/content/browser/browser_child_process_host_impl.h

Index: trunk/src/content/browser/browser_child_process_host_impl.h
===================================================================
--- trunk/src/content/browser/browser_child_process_host_impl.h	(revision 199846)
+++ trunk/src/content/browser/browser_child_process_host_impl.h	(working copy)
@@ -61,9 +61,6 @@
   // Removes this host from the host list. Calls ChildProcessHost::ForceShutdown
   void ForceShutdown();
 
-  // Callers can reduce the BrowserChildProcess' priority.
-  void SetBackgrounded(bool backgrounded);
-
   // Controls whether the child process should be terminated on browser
   // shutdown. Default is to always terminate.
   void SetTerminateChildOnShutdown(bool terminate_on_shutdown);