Update third_party/devtools-frontend acb77af66d..2c3fbc1c99

https://chromium.googlesource.com/devtools/devtools-frontend/+log/acb77af66d..2c3fbc1c99

TBR=bmeurer@chromium.org

Change-Id: Iea5088922dbaf74235d7fa67b52e312ae684dc0c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1871886Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708186}

DEPS

@@ -242,7 +242,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-frontend
   # and whatever else without interference from each other.
-  'devtools_frontend_revision': 'acb77af66d8efcf9e5995ae36367552111993089',
+  'devtools_frontend_revision': 'c39b45a50522ede5dd7b6df0cdeab4566561c3e7',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libprotobuf-mutator
   # and whatever else without interference from each other.