Roll buildtools and libc++

Roll buildtools/ aaab0bb75..d0f0285d0 (11 commits)

https://chromium.googlesource.com/chromium/src/buildtools.git/+log/aaab0bb753c4..d0f0285d02d7

Created with:
  roll-dep buildtools

Roll third_party/libc++/src/ 51e4d21e7..e3b94d0e5 (2 commits)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/51e4d21e786a..e3b94d0e5b86

Created with:
  roll-dep third_party/libc++/src

Change-Id: I2972a4595eef28fb6f17c823de82fd73fd264c35
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/118694
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 137ac9f..d6ad543 100644
--- a/DEPS
+++ b/DEPS
@@ -73,7 +73,7 @@
   # 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': 'aaab0bb753c4eee97a211194a3f404e38f666470',
+  'buildtools_revision': 'd0f0285d02d788719edb53fa9dcec1584ff83875',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
@@ -135,7 +135,7 @@
   # and whatever else without interference from each other.
   # If you change this, also update the libc++ revision in
   # //buildtools/deps_revisions.gni.
-  'libcxx_revision': '51e4d21e786a4d2318f38525f3ac799f4f6e1283',
+  'libcxx_revision': 'e3b94d0e5b86883fd77696bf10dc33ba250ba99b',
   # 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.