Update DevTools DEPS.
Update DevTools DEPS.

Rolling build: https://chromium.googlesource.com/chromium/src/build/+log/2f6c079..8682a2d

Rolling buildtools: https://chromium.googlesource.com/chromium/src/buildtools/+log/c12bf52..8b16338

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

Bug: none
Change-Id: I463e99a84c88381ab1d98d02e25c4c1fe4971ed7
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3677707
Bot-Commit: Devtools Autoroller <075cca983f8f93eec1be8cf9702f03e09507e730@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Devtools Autoroller <075cca983f8f93eec1be8cf9702f03e09507e730@chops-service-accounts.iam.gserviceaccount.com>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend