tree 463094c9382fe9cd162038fe255a5cd72db78d98
parent b3a2ab4a193d7c65d5defb78d119e4e9994b1aad
author Ming-Ying Chung <mych@chromium.org> 1693969111 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1693969694 -0700

[fetch-later] Limit max amount of deferred requests per origin

The [spec][1] of the "Deferred fetching" algorithm sets the maximum
bytes of deferred requests (a fetchLater request) for a request URL
origin to 64 kilobytes.

This CL implements the restriction by surfacing a fetch's Request
body size from Request::ExtractBody() to
FetchRequestData::BufferByteLength(). The body size is extracted from
v8 value when `ExtractBody()` performs the body extraction.

Intentionally not to modify `Body` (Requests's base class) nor
`BodyStreamBuffer` (FetchRequestData::Buffer()'s return type), as they
are all widely used beyond a request, e.g. it can also be a response body.

[1]: https://whatpr.org/fetch/1647/53e4c3d...71fd383.html#deferred-fetching

Bug: 1465781
Change-Id: I075be5043f5658971d347729923f968b428bc7c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4835437
Commit-Queue: Ming-Ying Chung <mych@chromium.org>
Reviewed-by: Nidhi Jaju <nidhijaju@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1192831}