tree ec866088753e5988c23bd4d185382b191a310189
parent 89cff6a99291719842e719c82d1968a8b64aa28e
author Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1706039233 -0800
committer GitHub <noreply@github.com> 1706039233 -0800
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[bfcache] Update NotRestoredReasons to match the spec draft (#43511)

This CL updates NotRestoredReasons API's implementation to conform to the spec draft[1].
Namely, this CL
(1) removes "preventedBFCache" enum,
(2) adds "masked" to the outermost main frame when cross-origin iframes are blocking, and
(3) creates NotRestoredReasonDetails class on the blink side to make the reason into a struct like {"reason": "error-document"}.

As for (2), when `kAllowCrossOriginSubframes` flag is on, we add "masked" to the randomly selected cross-origin iframe.
Also with (2), `reasons` field is no longer specific to same-origin frames, so I'm moving the field out of `SameOriginDetails`.

We also need to add "masked" when UA internal reasons such as memory pressure block, and that's going to be addressed in a follow-up.

[1]: https://github.com/whatwg/html/pull/9360/files

Bug: 1472637

Change-Id: I89702696a128eea31b2dd2af0ef8c9874e7213ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5086563
Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org>
Reviewed-by: Rakina Zata Amni <rakina@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1249965}

Co-authored-by: rubberyuzu <yuzus@chromium.org>