[Merge-103] Ignore unrecognized legacy MediaConstraints being parsed.

Edit: Not renaming unused constants to "kOBSOLETE_" in the backmerge in
order to reduce the size of the backmerge.

This is consistent with how WebIDL parses JS dictionary objects and
allows us to delete old constants and use counters.

Bonus: Delete RtpDataChannel legacy constraints, it was already ignored
(and the comment about it only being available on Fuchsia was wrong).

(cherry picked from commit b341786378d07dfe278ead19f42c98b16b57ccba)

Bug: 1328047, 1328049
Change-Id: Ib6b0e22303918d9c408a382ee2f5720e63127947
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3660263
Reviewed-by: Harald Alvestrand <hta@chromium.org>
Commit-Queue: Henrik Boström <hbos@chromium.org>
Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>
Reviewed-by: Ari Chivukula <arichiv@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1006820}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3689557
Cr-Commit-Position: refs/branch-heads/5060@{#631}
Cr-Branched-From: b83393d0f4038aeaf67f970a024d8101df7348d1-refs/heads/main@{#1002911}
8 files changed
tree: 8c364e8d2f15bf4f9ffab352e2f424ab0f97386c
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. courgette/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia/
  22. fuchsia_webengine/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. media/
  32. mojo/
  33. native_client_sdk/
  34. net/
  35. pdf/
  36. ppapi/
  37. printing/
  38. remoting/
  39. rlz/
  40. sandbox/
  41. services/
  42. skia/
  43. sql/
  44. storage/
  45. styleguide/
  46. testing/
  47. third_party/
  48. tools/
  49. ui/
  50. url/
  51. weblayer/
  52. .clang-format
  53. .clang-tidy
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitattributes
  57. .gitignore
  58. .gn
  59. .mailmap
  60. .rustfmt.toml
  61. .vpython
  62. .vpython3
  63. .yapfignore
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. DEPS
  69. DIR_METADATA
  70. ENG_REVIEW_OWNERS
  71. LICENSE
  72. LICENSE.chromium_os
  73. OWNERS
  74. PRESUBMIT.py
  75. PRESUBMIT_test.py
  76. PRESUBMIT_test_mocks.py
  77. README.md
  78. WATCHLISTS
README.md

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