[mathml] Map displaystyle attribute using math-style

Map displaystyle attribute using math-style [1] as defined here [2].
Use the mapped internal math-style value for laying out fractions, i.e. pick the relevant metrics based on the math-style.

[1] https://mathml-refresh.github.io/mathml-core/#the-math-style-property
[2] https://mathml-refresh.github.io/mathml-core/#dfn-displaystyle

Bug: 1023296
Change-Id: Ie12eb43275c5ca773c8f824e1f4c1a0f9f232b85
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2105317
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Reviewed-by: Frédéric Wang <fwang@igalia.com>
Commit-Queue: Rob Buis <rbuis@igalia.com>
Cr-Commit-Position: refs/heads/master@{#752570}
8 files changed
tree: ec2a0342193536895caca7cb128695e49908acfd
  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.

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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.