Parsing and internal representation of scrollbar-gutter

The scrollbar-gutter CSS property provides control over the presence
of scrollbar gutters (the space which may be reserved by the UA to
display a scrollbar).

The value of scrollbar-gutter is defined by a combination of one or
more keywords ("auto", "stable", "always", "both" and "force").

This property is internally stored as an unsigned int with binary
flags for each one of those keywords.

For convenience, ScrollbarGutterIs* methods have been added to
ComputedStyle.

Parsing WPT tests are included.

Feature status: test.

Bug: 710214
Change-Id: Ia5928ab4c379097065e28604d8431aab3e8f22c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2245426
Commit-Queue: Felipe Erias Morandeira <felipeerias@gmail.com>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#780697}
24 files changed
tree: 95d9275421a2b822fa5a8af7056b990912b7a8c3
  1. .clang-format
  2. .clang-tidy
  3. .eslintrc.js
  4. .git-blame-ignore-revs
  5. .gitattributes
  6. .gitignore
  7. .gn
  8. .vpython
  9. .vpython3
  10. .yapfignore
  11. AUTHORS
  12. BUILD.gn
  13. CODE_OF_CONDUCT.md
  14. DEPS
  15. ENG_REVIEW_OWNERS
  16. LICENSE
  17. LICENSE.chromium_os
  18. OWNERS
  19. PRESUBMIT.py
  20. PRESUBMIT_test.py
  21. PRESUBMIT_test_mocks.py
  22. README.md
  23. WATCHLISTS
  24. android_webview/
  25. apps/
  26. ash/
  27. base/
  28. build/
  29. build_overrides/
  30. buildtools/
  31. cc/
  32. chrome/
  33. chromecast/
  34. chromeos/
  35. cloud_print/
  36. codereview.settings
  37. components/
  38. content/
  39. courgette/
  40. crypto/
  41. dbus/
  42. device/
  43. docs/
  44. extensions/
  45. fuchsia/
  46. gin/
  47. google_apis/
  48. google_update/
  49. gpu/
  50. headless/
  51. infra/
  52. ios/
  53. ipc/
  54. jingle/
  55. media/
  56. mojo/
  57. native_client_sdk/
  58. net/
  59. pdf/
  60. ppapi/
  61. printing/
  62. remoting/
  63. rlz/
  64. sandbox/
  65. services/
  66. skia/
  67. sql/
  68. storage/
  69. styleguide/
  70. testing/
  71. third_party/
  72. tools/
  73. ui/
  74. url/
  75. weblayer/
README.md

Logo Chromium

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

The project's web site is https://www.chromium.org.

Documentation in the source is rooted in docs/README.md.

Learn how to Get Around the Chromium Source Code Directory Structure .

For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.