Add support for a visibility time window for Google Variation IDs.

This allows Chrome to limit, at run-time, the sending of specific
variation IDs to a given start/end time period.

* Add a TimeWindow struct containing start and end base::Time fields,
  defaulting to base::Time::Min() and base::Time::Max(), respectively.
* Add TimeWindow parameters to the AssociateGoogleVariationsID.*
  functions, defaulting to a default TimeWindow` instance.
* Store the associated TimeWindow alongside the VariationID in the
  GroupToIdMap.
* Return EMPTY_ID when a VariationID is queried and the current time,
  via base::Time::Now(), is outside of the TimeWindow for that ID.
* Add unittests to associate a TimeWindow with a VariationID and to
  lookup a VariationID at different times relative to its 'TimeWindow`.

Bug: 422445334
Change-Id: Ida0548602cb71f2e05ca0d89b13080f54c18fd19
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6621979
Commit-Queue: Roger McFarlane <rogerm@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1475264}
3 files changed
tree: 8951a3cc233686698c5c91fa83e4a499bcdf9e06
  1. .github/
  2. android_webview/
  3. apps/
  4. ash/
  5. base/
  6. build/
  7. build_overrides/
  8. buildtools/
  9. cc/
  10. chrome/
  11. chromecast/
  12. chromeos/
  13. codelabs/
  14. components/
  15. content/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia_web/
  22. gin/
  23. google_apis/
  24. gpu/
  25. headless/
  26. infra/
  27. ios/
  28. ipc/
  29. media/
  30. mojo/
  31. native_client_sdk/
  32. net/
  33. pdf/
  34. ppapi/
  35. printing/
  36. remoting/
  37. rlz/
  38. sandbox/
  39. services/
  40. skia/
  41. sql/
  42. storage/
  43. styleguide/
  44. testing/
  45. third_party/
  46. tools/
  47. ui/
  48. url/
  49. webkit/
  50. .clang-format
  51. .clang-tidy
  52. .clangd
  53. .cursorignore
  54. .git-blame-ignore-revs
  55. .gitallowed
  56. .gitattributes
  57. .gitignore
  58. .gitmodules
  59. .gn
  60. .mailmap
  61. .rustfmt.toml
  62. .vpython3
  63. .yapfignore
  64. ATL_OWNERS
  65. AUTHORS
  66. BUILD.gn
  67. CODE_OF_CONDUCT.md
  68. codereview.settings
  69. CPPLINT.cfg
  70. CRYPTO_OWNERS
  71. DEPS
  72. DIR_METADATA
  73. LICENSE
  74. LICENSE.chromium_os
  75. OWNERS
  76. PRESUBMIT.py
  77. PRESUBMIT_test.py
  78. PRESUBMIT_test_mocks.py
  79. README.md
  80. SECURITY_OWNERS
  81. WATCHLISTS
README.md

Logo Chromium

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