Sync ModelLoadManager cleanup: Remove `loaded_types_` member

This member tracked which data types had reached (at least) the
"loaded" state.
This CL changes ModelLoadManager to query the canonical state from the
ModelTypeControllers instead.

This "should" result in equivalent behavior, but it's really hard to
be sure. It definitely removes the risk of `loaded_types_` being out
of sync with the actual status (which was previously haphazardly
enforced via various (D)CHECKs, some of which triggered from time to
time).

Bug: 40901755
Change-Id: I7b6e26b4f7d26b52e97150d2bd5b989f5d900c19
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5401793
Reviewed-by: Jood Hajeer <jood@google.com>
Commit-Queue: Marc Treib <treib@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1279595}
2 files changed
tree: d546eb7f14a66d60c7f43b15fdb4ef89c98dc385
  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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