Roll libc++ from dbea84767223 to 99f5e4d09e30 (2 revisions)

dbea847672..99f5e4d09e

2023-12-14 stl@nuwen.net [libc++][test] Enhance ADDITIONAL_COMPILE_FLAGS, use TEST_MEOW_DIAGNOSTIC_IGNORED sparingly (#75317)
2023-12-14 ldionne.2@gmail.com [libc++] Remove anchors for agent queues from the BuildKite pipeline configuration (#75359)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/libcxx-chromium
Please CC hans@chromium.org,thakis@chromium.org on the revert to ensure that a human
is aware of the problem.

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To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

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https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: hans@chromium.org,thakis@chromium.org
Change-Id: Icf04fb631b379e6921cc9d6e62844acdbd969396
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5125332
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1237901}

DEPS

@@ -494,7 +494,7 @@ vars = {
 
   # If you change this, also update the libc++ revision in
   # //buildtools/deps_revisions.gni.
-  'libcxx_revision':       'dbea8476722304fba54a843659313f2ecf2252c3',
+  'libcxx_revision':       '99f5e4d09e3014e1b178dfd7ebf451e652461ad6',
 
   # GN CIPD package version.
   'gn_version': 'git_revision:85944ebc24a90ec1e489e85a46fdc68542c3146f',

buildtools/deps_revisions.gni

@@ -5,5 +5,5 @@
 declare_args() {
   # Used to cause full rebuilds on libc++ rolls. This should be kept in sync
   # with the libcxx_revision vars in //DEPS.
-  libcxx_revision = "dbea8476722304fba54a843659313f2ecf2252c3"
+  libcxx_revision = "99f5e4d09e3014e1b178dfd7ebf451e652461ad6"
 }