Sped up allocateBranchIsland by skipping whole regions of allocated memory.

third_party/mach_override/README.chromium

Index: third_party/mach_override/README.chromium
diff --git a/third_party/mach_override/README.chromium b/third_party/mach_override/README.chromium
index 8a7c3fd79e0b6286120829314a72badbeb316c42..d83803a2bf63f0c8ec08a9a5b55e8224af1cd245 100644
--- a/third_party/mach_override/README.chromium
+++ b/third_party/mach_override/README.chromium
@@ -1,6 +1,7 @@
 Name: mach_override
 Short Name: mach_override
-Version: Newer than 1.2. HEAD from branch semver-1.x.
+Version: 0

[Mark Mentovai, 2017/06/20 20:32:33]

?

Can you put this back how it was?

[Boris Vidolov, 2017/06/21 00:02:21]

'git cl upload' errored out on me, requiring a version. I had to hack it to
work.  Per README template, this should be 0, if the version is tracked by the
revision. To satisfy the tools, I have set it to 0 and kept the comment on the
next line.
https://cs.chromium.org/chromium/src/third_party/README.chromium.template

+Newer than 1.2. HEAD from branch semver-1.x.
 URL: https://github.com/rentzsch/mach_override
 Date: 2014-05-11
 Revision: 919148f94db54fc04d287eb6a42c0c36b166bbfa
@@ -16,4 +17,5 @@ mach_override includes a copy of libudis86 1.7.1, available separately from
 http://udis86.sourceforge.net/ and https://github.com/vmt/udis86 .
 
 
-Local Modifications: None.
+Local Modifications: Sped up allocation of branch island memory via usage of
+   vm_region to skip already allocated pages.