Update DevTools DEPS (trusted)

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/bcf370d..cf76797

Roll created at https://cr-buildbucket.appspot.com/build/8706380442806365057

Bug: none
Change-Id: Ie1959da73e11b5ad71e1e0d22c47250668c05a02
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6849245
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

@@ -12,7 +12,7 @@ vars = {
   'build_with_chromium': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': 'bcf370db406bf6467dbf355a6b897ce90d5cf2ef',
+  'build_revision': 'cf767970ed99dcf7c7a2e11649bb52835ad32591',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
   'buildtools_revision': '85089564eaf73d42f6d5777cbfd0c242cb9a2486',