worker: Rename GlobalScopeCreationParams::content_security_policy_parsed_headers

This is a follow-up CL of https://crrev.com/c/1493694.
|outside_content_security_policy_headers| is a better name for the
field.

Bug: 924043
Change-Id: Ifa65eeec8ec833e67d28435efc788db968e87794
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1525763
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641498}
7 files changed