Roll build/ 49491ecc7..2e5d994c2 (24 commits)

https://chromium.googlesource.com/chromium/src/build.git/+log/49491ecc7ae5..2e5d994c2e40

This is a partial roll. https://crrev.com/c/6402716 adds a new
dependency that PDFium needs to import.

Created with:
  roll-dep build

Change-Id: I2e856c5d407cbcd56d9c4ae33deba81ece85c078
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/131391
Reviewed-by: Lei Zhang <thestig@chromium.org>
Auto-Submit: Andy Phan <andyphan@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 8c62a53..9f796ef 100644
--- a/DEPS
+++ b/DEPS
@@ -78,7 +78,7 @@
   # 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': '49491ecc7ae52b980a0bd3ad06cbde9c93af09ab',
+  'build_revision': '2e5d994c2e408fa6982bc0dcedf3bd13b174128b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling buildtools
   # and whatever else without interference from each other.