The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/31072bbbbe70ff2814701905d165dd0b12976ddd

commit 31072bbbbe70ff2814701905d165dd0b12976ddd
Author: Andy Paicu <andypaicu@chromium.org>
Date: Mon Nov 05 12:18:14 2018

SPV event should have some required init fields

Spec: https://w3c.github.io/webappsec-csp/#dictdef-securitypolicyviolationeventinit

Bug:  897646 
Change-Id: Id4c4947455a095c09aa34d16c7ff298ba4ba046e
Reviewed-on: https://chromium-review.googlesource.com/c/1292566
Commit-Queue: Andy Paicu <andypaicu@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605300}
[add] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/WebKit/LayoutTests/external/wpt/content-security-policy/securitypolicyviolation/constructor-required-fields.html
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/WebKit/LayoutTests/fast/events/constructors/security-policy-violation-event-constructor-expected.txt
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/WebKit/LayoutTests/fast/events/constructors/security-policy-violation-event-constructor.html
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/blink/renderer/core/events/security_policy_violation_event.cc
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/blink/renderer/core/events/security_policy_violation_event.h
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/blink/renderer/core/events/security_policy_violation_event.idl
[modify] https://crrev.com/31072bbbbe70ff2814701905d165dd0b12976ddd/third_party/blink/renderer/core/events/security_policy_violation_event_init.idl