Move initialization and shutdown of DBusThreadManager out of CrostiniTestHelper

CrostiniTestHelper tries to be helpful by initializing and shutting
down DBusThreadManager as needed. In production however, keyed
services are always shutdown before DBusThreadManager, so
DBusThreadManager must not be shutdown before the profile has been
destroyed (which shuts down all keyed services tied too it). As
CrostiniTestHelper uses a profile managed elsewhere, it cannot manage
this.

This was causing failures in ShelfContextMenuTest.CrostiniNormalApp,
as some tasks from CrostiniManager would run after DBusThreadManager
was shutdown and expect to have access to DBus clients.

Bug: 1177126
Change-Id: Ia7777570da010c3ebad4c31d77a85a59a19a7934
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2717603
Commit-Queue: Fergus Dall <sidereal@google.com>
Reviewed-by: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#857074}
9 files changed
tree: 06127dbc31f52776d47f043a6f54b8e5684b3dca
  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. cloud_print/
  13. codelabs/
  14. components/
  15. content/
  16. courgette/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. jingle/
  32. media/
  33. mojo/
  34. native_client_sdk/
  35. net/
  36. pdf/
  37. ppapi/
  38. printing/
  39. remoting/
  40. rlz/
  41. sandbox/
  42. services/
  43. skia/
  44. sql/
  45. storage/
  46. styleguide/
  47. testing/
  48. third_party/
  49. tools/
  50. ui/
  51. url/
  52. weblayer/
  53. .clang-format
  54. .clang-tidy
  55. .eslintrc.js
  56. .git-blame-ignore-revs
  57. .gitattributes
  58. .gitignore
  59. .gn
  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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