Fix blink/public/web/DEPS

The file:
  services/network/public/mojom/content_security_policy-shared.h
doesn't exist, this was a typo. The correct one is:
  services/network/public/mojom/content_security_policy.mojom-shared.h

Bug: None
Change-Id: I37c611c94f05806bf53293972a9371dfe17a561d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2062431
Auto-Submit: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742175}

third_party/blink/public/web/DEPS

@@ -31,7 +31,6 @@ include_rules = [
     "+services/network/public/mojom/cors_origin_pattern.mojom-shared.h",
     "+services/network/public/mojom/fetch_api.mojom-shared.h",
     "+services/network/public/mojom/ip_address_space.mojom-shared.h",
-    "+services/network/public/mojom/content_security_policy-shared.h",
     "+services/network/public/mojom/referrer_policy.mojom-shared.h",
     "+services/service_manager/public",
     "+ui/events/types",