Update third_party/mach_override to include the fix for building Chromium on 64 bits

third_party/mach_override/README.chromium

Index: third_party/mach_override/README.chromium
===================================================================
--- third_party/mach_override/README.chromium	(revision 149176)
+++ third_party/mach_override/README.chromium	(working copy)
@@ -2,8 +2,8 @@
 Short Name: Part of the mach_star project
 Version: Unknown
 URL: https://github.com/rentzsch/mach_star
-Date: 08/19/2011
-Revision: 87f491f8acef924d2ba90dd55fc23ad64f9d5bbd
+Date: 08/01/2012
+Revision: 6c4965586d28b931d19b428832fe5de968fd7d82
 License: MIT
 Security Critical: Yes
 
@@ -11,7 +11,7 @@
 Description:
 This is the mach_override part of mach_star, namely:
 
-  https://github.com/rentzsch/mach_star/tree/87f491f8acef924d2ba90dd55fc23ad64f9d5bbd
+  https://github.com/rentzsch/mach_star/tree/6c4965586d28b931d19b428832fe5de968fd7d82
 
 This package is used to replace framework functions with different
 implementations at run time.
@@ -26,3 +26,5 @@
 results in a crash on Lion. This modification is temoprary to simply test
 out the theory. If proven, the code will be improved somewhat.
 http://crbug.com/93736.
+
+The latest version doesn't have the parameter where the local modification was.

[Mark Mentovai, 2012/08/06 15:56:46]

Then is there a local modification at all?

If not, this should read

“Local Modifications: None”

The modifications section is only useful if modifications have, in fact been
made. If not, it shouldn’t be used as a dumping ground for historical notes.
That’s what revision history is for.