{M103 PICK} [IndexedDB] Use-After-Free Fix

We can't guarantee order in the task the constructor dispatches the same
way we could before due to all the async changes. Let's be sure all the
objects exist before using them now. Long term, we need to address
ownership of the idb context.

(cherry picked from commit 9d8104567e1ede06e86a7ffe40e5d5bf359ae6d1)

Bug: 1324864, 1218100
Change-Id: Id5753297a4c966432028a1e7e063c5f1bed6f619
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3645544
Auto-Submit: Ari Chivukula <arichiv@chromium.org>
Quick-Run: Ari Chivukula <arichiv@chromium.org>
Reviewed-by: Ayu Ishii <ayui@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Commit-Queue: Ari Chivukula <arichiv@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1002978}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3647910
Cr-Commit-Position: refs/branch-heads/5060@{#11}
Cr-Branched-From: b83393d0f4038aeaf67f970a024d8101df7348d1-refs/heads/main@{#1002911}
2 files changed
tree: 046489cfd861143215ee4f00018e3a6d77842d7b
  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/
  22. fuchsia_webengine/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. media/
  32. mojo/
  33. native_client_sdk/
  34. net/
  35. pdf/
  36. ppapi/
  37. printing/
  38. remoting/
  39. rlz/
  40. sandbox/
  41. services/
  42. skia/
  43. sql/
  44. storage/
  45. styleguide/
  46. testing/
  47. third_party/
  48. tools/
  49. ui/
  50. url/
  51. weblayer/
  52. .clang-format
  53. .clang-tidy
  54. .eslintrc.js
  55. .git-blame-ignore-revs
  56. .gitattributes
  57. .gitignore
  58. .gn
  59. .mailmap
  60. .rustfmt.toml
  61. .vpython
  62. .vpython3
  63. .yapfignore
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. DEPS
  69. DIR_METADATA
  70. ENG_REVIEW_OWNERS
  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

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