Roll build/ 315a0c669..e7232efeb (1 commit)

https://chromium.googlesource.com/chromium/src/build.git/+log/315a0c6691ca..e7232efebc1d

$ git log 315a0c669..e7232efeb --date=short --no-merges --format='%ad %ae %s'
2019-07-22 erikchen Roll macOS SDK to 10.14.

Created with:
  roll-dep build

TBR=tsepez@chromium.org

Change-Id: Ibe873ef053ad60db97c251034b32f8bbf4847160
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/58890
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

DEPS

diff --git a/DEPS b/DEPS
index 953ab5f..a95c56d 100644
--- a/DEPS
+++ b/DEPS
@@ -14,7 +14,7 @@
 
   'android_ndk_revision': '4e2cea441bfd43f0863d14f57b1e1844260b9884',
   'binutils_revision': '92bfa0a5dcee9dc01173e39e5bff226b09af0254',
-  'build_revision': '315a0c6691caffdfab93a54ca3068a6035321ef4',
+  'build_revision': 'e7232efebc1d3d8f23f8509fd4262a19d05e012f',
   'buildtools_revision': 'aeda9c123d0d6811bcca4fa6703012f2f682941f',
   'catapult_revision': '2861f86d3c5a1dc98d49be0c4e91105600896b52',
   'clang_revision': '8215b086137d5de08cd573955799a24cd40b4f1f',