Roll tools/clang/ 6849229b3..6cbea33c9 (9 commits)

https://chromium.googlesource.com/chromium/src/tools/clang/+log/6849229b30ca..6cbea33c97d0

Roll clang n358615-fb1aa286-3:n359864-04b9a46c-1.

Also roll build/ aae4f2e8c..a6687877a, which is just the other half of
https://crrev.com/787451.

https://chromium.googlesource.com/chromium/src/build.git/+log/aae4f2e8c322..a6687877adc9

Created with:
  roll-dep tools/clang

Tbr: dhoss@chromium.org
Change-Id: I0ff2e02a16ea2f7abc50c627fe3d39a0dd583dd8
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/72011
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index febd41a..0ac449f 100644
--- a/DEPS
+++ b/DEPS
@@ -35,7 +35,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build
   # and whatever else without interference from each other.
-  'build_revision': 'aae4f2e8c322cecdd0b5bf06f651bcbe98017ae4',
+  'build_revision': 'a6687877adc9064b6f4b2845d382e02575be1430',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling buildtools
   # and whatever else without interference from each other.
@@ -47,7 +47,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling clang
   # and whatever else without interference from each other.
-  'clang_revision': '6849229b30ca87b653ed47c4dc5443ff80ad23e8',
+  'clang_revision': '6cbea33c97d07ee51a1e03ee02b9d9c3d919752a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling clang_dsymutil
   # and whatever else without interference from each other.