Reland "[wasm] Publish new code from the background threads."

This is a reland of f991465b4216887abbfc037657c6b779729366ef

Original change's description:
> [wasm] Publish new code from the background threads.
> 
> R=clemensh@chromium.org
> BUG=v8:7921
> 
> Change-Id: Ib86cb5f742907b6e54365827facfc765867ca22e
> Reviewed-on: https://chromium-review.googlesource.com/1156384
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#54985}

Bug: v8:7921
Change-Id: I08c5eb689fe4f8ef2f7b576f0145eb0ae617fd9d
Reviewed-on: https://chromium-review.googlesource.com/1170603
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55042}
1 file changed
tree: 52ee46cf0f13b822665b40cfd0ae58201e385bbe
  1. benchmarks/
  2. build_overrides/
  3. custom_deps/
  4. docs/
  5. gni/
  6. include/
  7. infra/
  8. samples/
  9. src/
  10. test/
  11. testing/
  12. third_party/
  13. tools/
  14. .clang-format
  15. .editorconfig
  16. .git-blame-ignore-revs
  17. .gitattributes
  18. .gitignore
  19. .gn
  20. .vpython
  21. .ycm_extra_conf.py
  22. AUTHORS
  23. BUILD.gn
  24. ChangeLog
  25. CODE_OF_CONDUCT.md
  26. codereview.settings
  27. DEPS
  28. LICENSE
  29. LICENSE.fdlibm
  30. LICENSE.strongtalk
  31. LICENSE.v8
  32. LICENSE.valgrind
  33. OWNERS
  34. PRESUBMIT.py
  35. README.md
  36. snapshot_toolchain.gni
  37. WATCHLISTS
README.md

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://github.com/v8/v8/wiki

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned on the V8 wiki.