Revert 150529 (very likely caused http://crbug.com/141707

third_party/mach_override/README.chromium

Index: third_party/mach_override/README.chromium
===================================================================
--- third_party/mach_override/README.chromium	(revision 150900)
+++ 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: 08/01/2012
-Revision: 6c4965586d28b931d19b428832fe5de968fd7d82
+Date: 08/19/2011
+Revision: 87f491f8acef924d2ba90dd55fc23ad64f9d5bbd
 License: MIT
 Security Critical: Yes
 
@@ -11,10 +11,18 @@
 Description:
 This is the mach_override part of mach_star, namely:
 
-  https://github.com/rentzsch/mach_star/tree/6c4965586d28b931d19b428832fe5de968fd7d82
+  https://github.com/rentzsch/mach_star/tree/87f491f8acef924d2ba90dd55fc23ad64f9d5bbd
 
 This package is used to replace framework functions with different
 implementations at run time.
 
 
-Local Modifications: None
+Local Modifications:
+
+reentryIsland is allocated in high memory with vm_allocate rather than the
+heap with malloc by changing the allocation policy to kAllocateHigh. It
+appears probable that putting the reentry island in the heap causes its page
+to lose execute permission at some point under some circumstances, which
+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.