[shared storage] implement permissions policy #34740
Merged
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Add the "shared-storage" permissions policy that disallows all
Shared Storage methods.
https://github.com/WICG/shared-storage/blob/main/README.md#permissions-policy
Due to this change, Shared Storage won't be allowed in Fenced Frames
as Fenced Frames disallow all permissions policies. This decision may
change in the future: WICG/fenced-frame#44
Bug: 1337454
Change-Id: I856d31933032355409585bc376f2b6826f667270
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3710841
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Ian Clelland <iclelland@chromium.org>
Commit-Queue: Yao Xiao <yaoxia@chromium.org>
Reviewed-by: Dominic Farolino <dom@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1023892}