Clean up some Web Components v0 flags

All of these features (Shadow DOM v0, Custom Elements v0, and
HTML Imports) have now been disabled permanently. Clean up
some of the easy bits like feature flags.

Bug: 937746, 738611
Change-Id: I8e5e2bd520ce6bed7d5e4d5e62047ef68fe6d119
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2723236
Reviewed-by: Joey Arhar <jarhar@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Robert Kaplow <rkaplow@chromium.org>
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Cr-Commit-Position: refs/heads/master@{#858995}
GitOrigin-RevId: 46ff0c3d013b0a96199e4857bce4fa06f771326b
1 file changed
tree: 065fb9efbc59ffdd416963a21f62a6c5d903bdc8
  1. accessibility/
  2. android/
  3. binary_size/
  4. bisect_repackage/
  5. cfi/
  6. check_ecs_deps/
  7. checkbins/
  8. checklicenses/
  9. checkperms/
  10. checkteamtags/
  11. chrome_extensions/
  12. clang/
  13. code_coverage/
  14. compile_test/
  15. coverity/
  16. cr/
  17. cros/
  18. cygprofile/
  19. determinism/
  20. diagnosis/
  21. dromaeo_benchmark_runner/
  22. dump_process_memory/
  23. emacs/
  24. find_runtime_symbols/
  25. flags/
  26. flakiness/
  27. fuchsia/
  28. gdb/
  29. generate_library_loader/
  30. generate_shim_headers/
  31. generate_stubs/
  32. get_swarming_logs/
  33. git/
  34. gn/
  35. grit/
  36. gritsettings/
  37. idl_parser/
  38. imagediff/
  39. infra/
  40. ipc_fuzzer/
  41. json_comment_eater/
  42. json_schema_compiler/
  43. json_to_struct/
  44. linux/
  45. lldb/
  46. luci-go/
  47. mac/
  48. mb/
  49. md_browser/
  50. media_engagement_preload/
  51. memory/
  52. memory_inspector/
  53. metrics/
  54. msan/
  55. oopif/
  56. origin_trials/
  57. page_cycler/
  58. perf/
  59. polymer/
  60. privacy_budget/
  61. protoc_wrapper/
  62. python/
  63. real_world_impact/
  64. resources/
  65. resultdb/
  66. security/
  67. site_compare/
  68. stats_viewer/
  69. strict_enum_value_checker/
  70. style_variable_generator/
  71. sublime/
  72. symsrc/
  73. tcmalloc/
  74. tests/
  75. traceline/
  76. traffic_annotation/
  77. translation/
  78. ubsan/
  79. usb_gadget/
  80. v8_context_snapshot/
  81. valgrind/
  82. variations/
  83. vim/
  84. vscode/
  85. web_bluetooth/
  86. web_dev_style/
  87. win/
  88. .style.yapf
  89. auto-nav.py
  90. autotest.py
  91. bash-completion
  92. bisect-builds.py
  93. bisect_test.py
  94. boilerplate.py
  95. buildstate.bat
  96. buildstate.py
  97. check_git_config.py
  98. check_grd_for_unused_strings.py
  99. clang-format-js
  100. DEPS
  101. diagnose-me.py
  102. DIR_METADATA
  103. download_optimization_profile.py
  104. gypv8sh.py
  105. include_tracer.py
  106. ipc_messages_log.py
  107. licenses.py
  108. make-gtest-filter.py
  109. multi_process_rss.py
  110. nocompile_driver.py
  111. omahaproxy.py
  112. OWNERS
  113. perry.py
  114. remove_duplicate_includes.py
  115. remove_stale_pyc_files.py
  116. roll_webgl_conformance.py
  117. run-swarmed.py
  118. sort-headers.py
  119. sort_sources.py
  120. uberblame.py
  121. unused-symbols-report.py
  122. update_pgo_profiles.py
  123. yes_no.py