Update DevTools DEPS.

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/40d725c..2dbe2b9

TBR=machenbach@chromium.org,liviurau@chromium.org

Bug: none
Change-Id: Ic83f92c41910739515b3e97d8b89f1751de3a47d
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3251548
Reviewed-by: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Devtools Autoroller <devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 9339cb2..4536a20 100644
--- a/DEPS
+++ b/DEPS
@@ -11,7 +11,7 @@
   'checkout_reclient': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': '40d725c7111b998011938a2e89a1b738cf04de03',
+  'build_revision': '2dbe2b9e83d12389eba3900d8e554141e34370d7',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
   'buildtools_revision': '80e4f838faaf50e18629ae630df1d421f255a62a',