Add client Brotli support (#5227)

[ddelange]

(cherry picked from commit 28ea32d)
(cherry picked from commit fab2c62)

backport ref #5227 (comment)

[codecov]

Codecov Report

Merging #7101 (b44587e) into 3.8 (8cf01ad) will decrease coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              3.8    #7101      +/-   ##
==========================================
- Coverage   97.46%   97.39%   -0.07%     
==========================================
  Files         103      103              
  Lines       29964    29956       -8     
  Branches     3059     3060       +1     
==========================================
- Hits        29204    29176      -28     
- Misses        571      591      +20     
  Partials      189      189              

Flag	Coverage Δ
CI-GHA	97.26% <100.00%> (-0.07%)	⬇️
OS-Linux	96.90% <100.00%> (-0.12%)	⬇️
OS-Windows	95.16% <100.00%> (+0.41%)	⬆️
OS-macOS	96.00% <100.00%> (?)
Py-3.10.7	?
Py-3.10.8	96.86% <100.00%> (?)
Py-3.6.15	96.50% <100.00%> (+0.04%)	⬆️
Py-3.6.8	94.75% <100.00%> (-0.01%)	⬇️
Py-3.7.14	?
Py-3.7.15	96.65% <100.00%> (?)
Py-3.8.10	94.81% <100.00%> (?)
Py-3.8.14	96.56% <100.00%> (-0.06%)	⬇️
Py-3.9.14	?
VM-macos	96.00% <100.00%> (?)
VM-ubuntu	96.90% <100.00%> (-0.12%)	⬇️
VM-windows	95.16% <100.00%> (+0.41%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
aiohttp/client_reqrep.py	97.52% <100.00%> (+0.01%)	⬆️
tests/test_client_request.py	99.60% <100.00%> (+<0.01%)	⬆️
tests/test_web_functional.py	97.93% <100.00%> (-0.16%)	⬇️
tests/autobahn/client/client.py	42.85% <0.00%> (-53.58%)	⬇️
tests/test_websocket_parser.py	96.66% <0.00%> (-1.67%)	⬇️
tests/test_test_utils.py	97.10% <0.00%> (-0.83%)	⬇️
tests/test_helpers.py	98.10% <0.00%> (-0.55%)	⬇️
tests/test_client_session.py	98.18% <0.00%> (-0.41%)	⬇️
tests/test_client_ws_functional.py	97.60% <0.00%> (-0.35%)	⬇️
tests/test_streams.py	99.81% <0.00%> (-0.19%)	⬇️
... and 8 more

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[ddelange]

E       AssertionError: assert '1.0.0.0.0.0.....0.0.ip6.arpa' == 'Mac-1669312225691.local'
E         - Mac-1669312225691.local
E         + 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa

ref https://github.com/aio-libs/aiohttp/actions/runs/3542772584/jobs/5948622150#step:10:402

hmm, is this related to this PR? 🤔

[Dreamsorcerer]

Probably best not to push a new feature into a bug fix release. But, I also don't think we'll be doing another 3.8 release anyway.

@webknjaz Think we can do a beta release for 3.9 next week?

[ddelange]

Hi @Dreamsorcerer 👋 Any updates on the release? I also asked in the backport PR against 3.9, but no response... It's 6 months later now (and 2.5 years since the original PR), and I would really like to experience the speed-up from this one :)

[ddelange]

hi @Dreamsorcerer 👋 is there anything known about the 3.9 release?

[Dreamsorcerer]

Getting back round to it.