Roll build_revision to bff6ee8.

Also roll buildtools_revision to f90f6a5 and update Android code that
did not previously pass the Chromium style plugin.

TBR=dsinclair@chromium.org

Change-Id: Ifb1193cee8f68ac99a31c8d43195e4d7005eeafb
Reviewed-on: https://pdfium-review.googlesource.com/11293
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 3c30ce5..d7fddcc 100644
--- a/DEPS
+++ b/DEPS
@@ -5,8 +5,8 @@
   'pdfium_git': 'https://pdfium.googlesource.com',
 
   'android_ndk_revision': '26d93ec07f3ce2ec2cdfeae1b21ee6f12ff868d8',
-  'build_revision': 'f671d3baeb64d9dba628ad582e867cf1aebc0207',
-  'buildtools_revision': 'e6b510a9daf822bbe9f922c200c58150803d2fd8',
+  'build_revision': 'bff6ee8c495fdf3c0294254dbc8baf4344ac7e05',
+  'buildtools_revision': 'f90f6a5af3e8cf843395bfe6243cf606f71b5344',
   'catapult_revision': '86352b966b0245d6883e5f7df27687856978b6d7',
   'clang_revision': '7770b47ac41c457739a5f3b6932cb1f479dee0e1',
   'cygwin_revision': 'c89e446b273697fadf3a10ff1007a97c0b7de6df',