Merge 32586 - Fix unitialized memory access in workers....

chrome/browser/worker_host/message_port_dispatcher.h

Index: chrome/browser/worker_host/message_port_dispatcher.h
===================================================================
--- chrome/browser/worker_host/message_port_dispatcher.h	(revision 33270)
+++ chrome/browser/worker_host/message_port_dispatcher.h	(working copy)
@@ -67,6 +67,16 @@
                const NotificationSource& source,
                const NotificationDetails& details);
 
+  // Handles the details of removing a message port id. Before calling this,
+  // verify that the message port id exists.
+  void Erase(int message_port_id);
+
+#ifdef NDEBUG
+  bool CheckMessagePortMap(bool check_entanglements) { }
+#else
+  bool CheckMessagePortMap(bool check_entanglements);
+#endif
+
   struct MessagePort {
     // sender and route_id are what we need to send messages to the port.
     IPC::Message::Sender* sender;