[files] Separate ItemSuggestCache construction from its provider.

This CL separates out the construction for ItemSuggestCache and
ZeroStateDriveProvider. This allows for dependency injection, which will
help with ZSDP unit tests.

Also, result callbacks will now be registered via RegisterCallback
instead of being passed into the constructor of ItemSuggestCache. Allows
multiple callbacks to be registered if necessary.

Bug: 1348449
Change-Id: I2986c5968da042d24c7a1dd6ce6a9035cc82ebdc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3828340
Commit-Queue: Rachel Wong <wrong@chromium.org>
Reviewed-by: Amanda Deacon <amandadeacon@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1034990}
7 files changed
tree: e8bcefdbd9693df6a61339d1df94ff7f9d40dd9a
  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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