Roll src/third_party/re2/src/ 46155299e..9a227bed7 (1 commit)

https://chromium.googlesource.com/external/github.com/google/re2.git/+log/46155299edb9..9a227bed7a0f

$ git log 46155299e..9a227bed7 --date=short --no-merges --format='%ad %ae %s'
2018-10-31 junyer Make Prefilter::Info::Walker::PostVisit() handle kRegexpAnyByte too.

Created with:
  roll-dep src/third_party/re2/src

R=mmoroz@chromium.org

Bug: 900671
Change-Id: Iad2dd959bdda48eeef6c5a4f6d7aa028c9c79538
Reviewed-on: https://chromium-review.googlesource.com/c/1311494Reviewed-by: Max Moroz <mmoroz@chromium.org>
Commit-Queue: Max Moroz <mmoroz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604484}

DEPS

@@ -1065,7 +1065,7 @@ deps = {
   },
 
   'src/third_party/re2/src':
-    Var('chromium_git') + '/external/github.com/google/re2.git' + '@' + '46155299edb9b30a44cfad233592a24c7d6a905d',
+    Var('chromium_git') + '/external/github.com/google/re2.git' + '@' + '9a227bed7a0fde418a94c967ef92d4a1fbe5e47f',
 
   'src/third_party/r8': {
       'packages': [