Roll build/ e9a12f276..e5ff2eff3 (85 commits)

Manual roll to pick up changes related to unsafe-buffers.

https://chromium.googlesource.com/chromium/src/build.git/+log/e9a12f27664b..e5ff2eff3ba5

Created with:
  roll-dep build

Change-Id: I2a464f7205f34cf5870f156d95cb40e034a4fd37
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/117810
Auto-Submit: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index e21f1b2..63ed87b 100644
--- a/DEPS
+++ b/DEPS
@@ -69,7 +69,7 @@
   # 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': 'e9a12f27664b7ede2b97cb510c90f27dba8a2143',
+  'build_revision': 'e5ff2eff3ba548792433766073b4399d506ec8db',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling buildtools
   # and whatever else without interference from each other.