Modify caret horizontal boundary behaviour for ChromeOS web content.

The caret behaviour on ChromeOS is currently quite jumpy, especially at
the top and bottom of a textfield. The caret behaviour on Android seems
less jumpy, so tentatively change the ChromeOS blink::EditingBehavior
ShouldMoveCaretToHorizontalBoundaryWhenPastTopOrBottom to match the
Android behavior (if the TouchTextEditingRedesign flag is enabled).

This is mainly to allow UX to test for now. May end up keeping or
reverting this depending on what UX thinks of the change.

Bug: b:244116654, b:286322336
Change-Id: Ida499641d4e0f9f1bd644021b8dd9a34486ed9bd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4607990
Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org>
Commit-Queue: Michelle Chen <michellegc@google.com>
Cr-Commit-Position: refs/heads/main@{#1157169}
1 file changed
tree: 9fea8d1508358cc3d62f4f7202aeacf7ef50a291
  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_web/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. native_client_sdk/
  33. net/
  34. pdf/
  35. ppapi/
  36. printing/
  37. remoting/
  38. rlz/
  39. sandbox/
  40. services/
  41. skia/
  42. sql/
  43. storage/
  44. styleguide/
  45. testing/
  46. third_party/
  47. tools/
  48. ui/
  49. url/
  50. weblayer/
  51. .clang-format
  52. .clang-tidy
  53. .eslintrc.js
  54. .git-blame-ignore-revs
  55. .gitattributes
  56. .gitignore
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython3
  61. .yapfignore
  62. ATL_OWNERS
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. LICENSE
  70. LICENSE.chromium_os
  71. OWNERS
  72. PRESUBMIT.py
  73. PRESUBMIT_test.py
  74. PRESUBMIT_test_mocks.py
  75. README.md
  76. WATCHLISTS
README.md

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