WPT updates for highlight painting order (css-pseudo)

This patch updates four web platform tests involving CSS highlight
painting order, which should help us rework our highlight paint code
to comply with css-pseudo.

• css/css-pseudo/selection-overlay-and-{grammar,spelling}-001.html
    • two manual tests, checking the relative painting order of
      ::selection and ::{grammar,spelling}-error overlays
    • added @contenteditable/@spellcheck/@lang to test element
    • added Selection#removeAllRanges call to work around API change
    • replaced the grammar test sentence with a more obvious example
    • rewrote most of the comments for clarity

• css/css-pseudo/highlight-painting-order.html
    • new reftest, checking relative painting order of text, original
      shadows, ::selection background, and ::selection shadows
    • based on <https://bucket.daz.cat/work/igalia/0/3.html>

• css/css-pseudo/selection-text-shadow-{006-manual,016{,-ref}}.html
    • one manual test, one reftest, checking that text-shadow:none in
      ::selection suppresses all original shadows (even if multiple)
    • dropped because they are no longer compliant (highlight overlays
      have their own shadows, independent of the content’s shadows)

Bug: 1147859
Change-Id: I29bab589e3924778d555d96537d010dc33ed003f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2624328
Commit-Queue: Delan Azabani <dazabani@igalia.com>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Reviewed-by: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843482}
9 files changed
tree: 4216456112ed2eb26e0cc04c28ff7345c9c8d3f6
  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. DIR_METADATA
  16. ENG_REVIEW_OWNERS
  17. LICENSE
  18. LICENSE.chromium_os
  19. OWNERS
  20. PRESUBMIT.py
  21. PRESUBMIT_test.py
  22. PRESUBMIT_test_mocks.py
  23. README.md
  24. WATCHLISTS
  25. android_webview/
  26. apps/
  27. ash/
  28. base/
  29. build/
  30. build_overrides/
  31. buildtools/
  32. cc/
  33. chrome/
  34. chromecast/
  35. chromeos/
  36. cloud_print/
  37. codelabs/
  38. codereview.settings
  39. components/
  40. content/
  41. courgette/
  42. crypto/
  43. dbus/
  44. device/
  45. docs/
  46. extensions/
  47. fuchsia/
  48. gin/
  49. google_apis/
  50. google_update/
  51. gpu/
  52. headless/
  53. infra/
  54. ios/
  55. ipc/
  56. jingle/
  57. media/
  58. mojo/
  59. native_client_sdk/
  60. net/
  61. pdf/
  62. ppapi/
  63. printing/
  64. remoting/
  65. rlz/
  66. sandbox/
  67. services/
  68. skia/
  69. sql/
  70. storage/
  71. styleguide/
  72. testing/
  73. third_party/
  74. tools/
  75. ui/
  76. url/
  77. 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.

To check out the source code locally, don't use git clone! Instead, follow the instructions on how to get the code.

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.