DevTools: Mention more features in What's New UI for Chrome 78
DevTools: Mention more features in What's New UI for Chrome 78

Bug: 986998
Change-Id: Iab7bef3f45b6a6ae03fff1f048cfb8787990ed68
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1785797
Auto-Submit: Kayce Basques <a4919b24b810ce167f961b979a35950b8b6b23e7@google.com>
Commit-Queue: Kayce Basques <a4919b24b810ce167f961b979a35950b8b6b23e7@google.com>
Commit-Queue: Erik Luo <26192f5e05d23e5ee959014fb911d780e566545b@chromium.org>
Reviewed-by: Erik Luo <26192f5e05d23e5ee959014fb911d780e566545b@chromium.org>
Cr-Original-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#693414}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 0f742e0d1457e805bc6a2f5ef07b52e029494b76

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