Update DevTools DEPS.

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/335ffdc..ec5340c

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

Bug: none
Change-Id: I768d929af8415ecb747e750592a7f0de24e6f331
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3648977
Bot-Commit: 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>

DEPS

diff --git a/DEPS b/DEPS
index 4288f90..c06a36c 100644
--- a/DEPS
+++ b/DEPS
@@ -11,7 +11,7 @@
   'checkout_reclient': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': '335ffdc1d8a4654171e172e46f32ac673c06b75d',
+  'build_revision': 'ec5340cbb10ad831d5c3cfded45ef3466b750bba',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
   'buildtools_revision': '7208eddba161d85108097c3c5975264c04e3cad8',