Check CSP for Transparent Placeholder Images
We used to skip all of ResourceFetcher::PrepareRequest for known
transparent placeholder images if the relevant feature flag was
enabled. However, this meant that CSP checks were skipped.
This CL adds back the CSP check explicitly for report-only and
enforced headers.
Bug: 41496436
Change-Id: I7cbd15df8363643a40b7d41a39a37866614cc5ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5725643
Reviewed-by: Rakina Zata Amni rakina@chromium.org
Reviewed-by: Takashi Toyoshima toyoshim@chromium.org
Commit-Queue: Nidhi Jaju nidhijaju@chromium.org
Cr-Commit-Position: refs/heads/main@{#1333384}