Update DevTools DEPS (trusted)

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/8f29743..ec4972c

Rolling buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/5df6417..d33e4e3

Rolling third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/a40c63a..375fb27

Roll created at https://cr-buildbucket.appspot.com/build/8697717109784894769

Bug: none
Change-Id: I228a2d758a07f6d50fc60dd200f24a2bd742ef81
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/7173598
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

@@ -12,13 +12,13 @@ vars = {
   'build_with_chromium': False,
 
   'build_url': 'https://chromium.googlesource.com/chromium/src/build.git',
-  'build_revision': '8f29743a09f2126bf201d4e52eac627edbf024df',
+  'build_revision': 'ec4972c8c286d0aa001795f3d2b6be3a38d97dcb',
 
   'buildtools_url': 'https://chromium.googlesource.com/chromium/src/buildtools.git',
-  'buildtools_revision': '5df641722f2e50623646d702e0046fb68c0f5ce1',
+  'buildtools_revision': 'd33e4e3371ae9f4f671c94959d10d643b2d1a507',
 
   'depot_tools_url': 'https://chromium.googlesource.com/chromium/tools/depot_tools.git',
-  'depot_tools_revision': 'a40c63a40be0951d502252386b9b4c8e5fd55aad',
+  'depot_tools_revision': '375fb27dca07105e30c1c8fb495925741ad55100',
 
   'inspector_protocol_url': 'https://chromium.googlesource.com/deps/inspector_protocol',
   'inspector_protocol_revision': '679b33a98ae546ff521eee2ea28d8d5bf28872ba',