Roll libc++ from 11c38d901d29 to 9ba1d4922ab2 (3 revisions)

11c38d901d..9ba1d4922a

2024-12-23 phosek@google.com [libcxx] Fix the #endif comments (#120949)
2024-12-23 phosek@google.com [libcxx] Remove the second inclusion of the system header (#120946)
2024-12-23 helianthus547@gmail.com [libc++] Refactor some code in monotonic_buffer_resource (#117271)

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https://autoroll.skia.org/r/libcxx-chromium
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is aware of the problem.

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Tbr: hans@chromium.org,thakis@chromium.org
Change-Id: Ie17d6f5e4b222d94edc855c9d2bed23ba9c8ef51
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6121305
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1399990}

DEPS

@@ -500,7 +500,7 @@ vars = {
 
   # If you change this, also update the libc++ revision in
   # //buildtools/deps_revisions.gni.
-  'libcxx_revision':       '11c38d901d29bc91aee3efb53652f7141f72f47f',
+  'libcxx_revision':       '9ba1d4922ab23234f7a2af4c8cd7699756959950',
 
   # GN CIPD package version.
   'gn_version': 'git_revision:c97a86a72105f3328a540f5a5ab17d11989ab7dd',

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 var in //DEPS.
-  libcxx_revision = "11c38d901d29bc91aee3efb53652f7141f72f47f"
+  libcxx_revision = "9ba1d4922ab23234f7a2af4c8cd7699756959950"
 }