[iOS][Waffle] Add device restore timestamp

This patch updates the APIs to detect a restore on iOS, to add
a timestamp for the latest restore.

Before this patch, `IsFirstSessionAfterDeviceRestore()` loads the
restore device state into cache (if it was not loaded yet) and returns
the value.

With this patch, `LoadDeviceRestoreData()` is called `IsFirstSessionAfterDeviceRestore()` and it loads the data if it
was not yet loaded.
`IsFirstSessionAfterDeviceRestore()` still returns the same value.
And `LastDeviceRestoreTimestamp()` is added to know when was the
last device restore value.

For crrev.com/c/6396506, `ResetDeviceRestoreDataForTesting()` is added
for test purposes.

This is required for crrev.com/c/6396506

Bug: 404176285
Change-Id: I835dd4ca7cfafb7fa529f1dfdc3e4ad15f208650
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6400794
Auto-Submit: Jérôme Lebel <jlebel@chromium.org>
Commit-Queue: Nicolas Dossou-Gbété <dgn@chromium.org>
Commit-Queue: Jérôme Lebel <jlebel@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Nicolas Dossou-Gbété <dgn@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1440183}
6 files changed
tree: 64e2cfc795a03e143cbc0f2f3049ae3268b5a5de
  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

Logo Chromium

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

The project's web site is https://www.chromium.org.

To check out the source code locally, don't use git clone! Instead, follow the instructions on how to get the code.

Documentation in the source is rooted in docs/README.md.

Learn how to Get Around the Chromium Source Code Directory Structure.

For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.

If you found a bug, please file it at https://crbug.com/new.