Recent Commits to brotli:master

Detect and report invalid stream earlier.

PiperOrigin-RevId: 876198329

Merge pull request #1420 from dpogue:patch-1

PiperOrigin-RevId: 875670546

Merge pull request #1398 from KilianKegel:master

PiperOrigin-RevId: 875661415

Add a flag to the dictionary generator to skip empty samples.

PiperOrigin-RevId: 875642399

Merge branch 'master' into master

Fix invalid for loop initialization

This fixes an error when building with gcc-4.2 on Mac OS X 10.5, and is consistent
with the rest of the for loop declarations in this file.

Add py free-threaded support + concurrent access test

PiperOrigin-RevId: 872298536

Enable shared_dictionary for quality 3 and 4.

PiperOrigin-RevId: 869794857