Update DevTools DEPS (trusted)

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/a1dc6cb..d2acff8

Rolling buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/3fa178a..d51c118

Roll created at https://cr-buildbucket.appspot.com/build/8723775059209804193

Bug: none
Change-Id: Ic017be5793c017a8c51efe4abe904f2fc600f363
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6234513
Commit-Queue: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>

Author: devtools-ci-autoroll-builder

DEPS

@@ -12,10 +12,10 @@ vars = {
   'build_with_chromium': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': 'a1dc6cbae099b1ca4181a331860f31351e5883d5',
+  'build_revision': 'd2acff863437fcc4586e1fb7144062ede416eed0',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
-  'buildtools_revision': '3fa178af78a51166308a526f0e9aa8720b2b3889',
+  'buildtools_revision': 'd51c118c75516434ae7b2896de87baaf4bc6749a',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
   'depot_tools_revision': '569d698b0b1990687cfaec3841e8f7701d9a6be4',