[CVC] Handle form submissions and errors.

This patch completes the implementation of the new autofill CVC prompt.
It handles the submission of the CVC and expiration date forms, loading
state and error alerts.

New iOS-specific strings were added for verification errors.

The patch also adds unit tests for the new CVC prompt given that manual
testing is limited by some payment backend restrictions.

Mocks:
https://www.figma.com/file/Gm9VJiRuLng7byxfAFOUeB/Passwords?node-id=3491%3A346973

Implemented UX:
Light:
 - Loading:
https://screenshot.googleplex.com/wHqi5ErD6dfQYt9
 - Error:
https://screenshot.googleplex.com/AKYcxs8FBWVXaoJ

Dark:
 - Loading:
https://screenshot.googleplex.com/9wLoxhWWM4Pwfqc
 - Error:
https://screenshot.googleplex.com/7ftWb33cwpryCjP

LOW_COVERAGE_REASON=Non covered code in card_unmask_prompt_controller_impl.cc are lines fetching string messages. In the case of card_unmask_prompt_view_bridge.mm, manual testing is used for verifying the bridge presents and dismisses the cvc prompt as expected.

Change-Id: I9d8cf00dbb5b3e294a2a32a10b3fad90bd020d96
Fixed: 1347184
Bug: 1351481
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3834783
Auto-Submit: Ernesto Izquierdo Clua <eic@google.com>
Commit-Queue: Ernesto Izquierdo Clua <eic@google.com>
Reviewed-by: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Jared Saul <jsaul@google.com>
Cr-Commit-Position: refs/heads/main@{#1045878}
11 files changed
tree: 0bed0b77835b1b3b8b60f88ebc9289bad2f96c0a
  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. .vpython
  61. .vpython3
  62. .yapfignore
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. ENG_REVIEW_OWNERS
  70. LICENSE
  71. LICENSE.chromium_os
  72. OWNERS
  73. PRESUBMIT.py
  74. PRESUBMIT_test.py
  75. PRESUBMIT_test_mocks.py
  76. README.md
  77. WATCHLISTS
README.md

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