Roll buildtools/, third_party/abseil-cpp/, and third_party/libc++/src/

Roll buildtools/ f15f314b7..94d7b86a8 (15 commits)

https://chromium.googlesource.com/chromium/src/buildtools.git/+log/f15f314b785b..94d7b86a8353

Roll third_party/abseil-cpp/ 30d4d2184..2ab6754e3 (7 commits)

https://chromium.googlesource.com/chromium/src/third_party/abseil-cpp.git/+log/30d4d2184638..2ab6754e38ad

Roll third_party/libc++/src/ 852bc6746..09b99fd8a (226 commits)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/852bc6746f45..09b99fd8ab30

Change-Id: I206318b79751507d37a1b2e106dab80e857da266
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/121153
Auto-Submit: Andy Phan <andyphan@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 95592da..e7f41e6 100644
--- a/DEPS
+++ b/DEPS
@@ -64,7 +64,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling abseil
   # and whatever else without interference from each other.
-  'abseil_revision': '30d4d2184638dcc328b79723355c65140cf06e4b',
+  'abseil_revision': '2ab6754e38ad73ad8b5572bce5e51d4543e0c94f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling android_toolchain
   # and whatever else without interference from each other.
@@ -76,7 +76,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling buildtools
   # and whatever else without interference from each other.
-  'buildtools_revision': 'f15f314b785b7a8ce19ca2851989b2da7fe6d004',
+  'buildtools_revision': '94d7b86a83537f8a7db7dccb0bf885739f7a81aa',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
@@ -138,7 +138,7 @@
   # and whatever else without interference from each other.
   # If you change this, also update the libc++ revision in
   # //buildtools/deps_revisions.gni.
-  'libcxx_revision': '852bc6746f45add53fec19f3a29280e69e358d44',
+  'libcxx_revision': '09b99fd8ab300c93ff7b8df6688cafb27bd3db28',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libc++abi
   # and whatever else without interference from each other.