WebUI: updating cr-dialog border radius

Bug: 832179
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: I7db70455f9e9a6f72840b51ba8d9f89dab38d406
Reviewed-on: https://chromium-review.googlesource.com/1060472
Commit-Queue: Esmael El-Moslimany <aee@chromium.org>
Reviewed-by: Demetrios Papadopoulos <dpapad@chromium.org>
Cr-Commit-Position: refs/heads/master@{#559239}
4 files changed