Reland "[FaceGaze] Add confirmation dialogs for feature/cursor/actions buttons"

This is a reland of commit c41380632ca608590fb12955865d759c8ecb3dd9

The original commit was reverted under suspicion of introducing
test failures on linux-chromeos-dbg, but the test failures
persisted after revert and were definitively traced back to a
different commit. Relanding this CL as-is.

crbug.com/384012319 filed for the test failures.

Bug: 371199351

Original change's description:
> [FaceGaze] Add confirmation dialogs for feature/cursor/actions buttons
>
> * Show standard confirmation dialog when feature is toggled off.
> * Show standard confirmation dialog when cursor control is toggled off.
> * Show standard confirmation dialog when actions are toggled off.
> * To enable user to use FaceGaze to interact with the dialog,
> add a set of sentinel prefs to indicate when users have toggled
> the button off.
> * To enable JS to force feature off without showing a dialog,
> add a sentinel pref for showing a confirmation dialog that is
> set to false when FaceGaze is forcing the feature off.
> * Update all JS to only interact with the set of sentinel prefs.
> * Add tests.
> * Leave cursor/actions strings as translateable=false for now.
>
> Design doc:
> https://docs.google.com/document/d/1ULHXI_QK6ET1Inyrm_9DrIpiecVFc3Z7kyyv6cs0oJ0/edit?usp=sharing
>
> Screenshots:
> https://screenshot.googleplex.com/3f6ir9GbJC7zd5q
> https://screenshot.googleplex.com/ra4nbokD8K4Cpub
> https://screenshot.googleplex.com/6fd2gzZvx8Gmg3W
>
> Change-Id: Iccb932657e9613cef670f2638e5dfa0794d0e3db
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6042086
> Reviewed-by: Akihiro Ota <akihiroota@chromium.org>
> Commit-Queue: Amanda Lin Dietz <aldietz@google.com>
> Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
> Reviewed-by: James Cook <jamescook@chromium.org>
> Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1395618}

Change-Id: I2a6ff4a9e251c86b66ffd36af778e06531423ce4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6101831
Reviewed-by: James Cook <jamescook@chromium.org>
Auto-Submit: Amanda Lin Dietz <aldietz@google.com>
Reviewed-by: Akihiro Ota <akihiroota@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Amanda Lin Dietz <aldietz@google.com>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1398090}
19 files changed
tree: 62e43216e5f55a4adb97728b8ad3b85b310dfc4f
  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. crypto/
  16. dbus/
  17. device/
  18. docs/
  19. extensions/
  20. fuchsia_web/
  21. gin/
  22. google_apis/
  23. gpu/
  24. headless/
  25. infra/
  26. ios/
  27. ipc/
  28. media/
  29. mojo/
  30. native_client_sdk/
  31. net/
  32. pdf/
  33. ppapi/
  34. printing/
  35. remoting/
  36. rlz/
  37. sandbox/
  38. services/
  39. skia/
  40. sql/
  41. storage/
  42. styleguide/
  43. testing/
  44. third_party/
  45. tools/
  46. ui/
  47. url/
  48. webkit/
  49. .clang-format
  50. .clang-tidy
  51. .clangd
  52. .git-blame-ignore-revs
  53. .gitallowed
  54. .gitattributes
  55. .gitignore
  56. .gitmodules
  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. CPPLINT.cfg
  68. CRYPTO_OWNERS
  69. DEPS
  70. DIR_METADATA
  71. LICENSE
  72. LICENSE.chromium_os
  73. OWNERS
  74. PRESUBMIT.py
  75. PRESUBMIT_test.py
  76. PRESUBMIT_test_mocks.py
  77. README.md
  78. WATCHLISTS
README.md

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