[fedcm] Introduce a permission prompt for the IdP Registration API

In this CL, we introduce an IdentityProviderPermissionRequest class,
which can be used to display a permission prompt to users to confirm
the registration of the website as an IdP.

The permission request is used when IdentityProvider.register() is
called, and the IdP is only registered if the user accepts the
permission.

Design Doc: https://docs.google.com/document/d/1MKpxTTLi-1e5-0brsdy50TVk2YM9AghoL3diSpRv_vE/edit?tab=t.0

Issue: https://github.com/fedidcg/FedCM/issues/240
Bug: 1406698
Change-Id: I85c260dd6a7f3877d2bc3b4c3ecb8fece1700e92
Low-Coverage-Reason: COVERAGE_UNDERREPORTED This CL adds tests to most LOC that it introduces, sometimes to classes that weren't tested at all, so I think the bot isn't capturing that level of detail. I believe that the LOCs that aren't covered are entries in enums that aren't tested in UI tests.
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5101281
Reviewed-by: Elias Klim <elklm@chromium.org>
Reviewed-by: Christian Biesinger <cbiesinger@chromium.org>
Reviewed-by: Charlie Reis <creis@chromium.org>
Reviewed-by: Mustafa Emre Acer <meacer@chromium.org>
Commit-Queue: Sam Goto <goto@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1271091}
28 files changed
tree: 4048fdf1b7e89cc7d4aa54ae3d6bb99bd225f8af
  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. webkit/
  51. .clang-format
  52. .clang-tidy
  53. .clangd
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitallowed
  57. .gitattributes
  58. .gitignore
  59. .gitmodules
  60. .gn
  61. .mailmap
  62. .rustfmt.toml
  63. .vpython3
  64. .yapfignore
  65. ATL_OWNERS
  66. AUTHORS
  67. BUILD.gn
  68. CODE_OF_CONDUCT.md
  69. codereview.settings
  70. DEPS
  71. DIR_METADATA
  72. LICENSE
  73. LICENSE.chromium_os
  74. OWNERS
  75. PRESUBMIT.py
  76. PRESUBMIT_test.py
  77. PRESUBMIT_test_mocks.py
  78. README.md
  79. WATCHLISTS
README.md

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