Revert "Prerender: Do not invoke show/hide/unload events on prerender cancellation"

This reverts commit d480050cb743e26cb68a90a6316471dac8f4d575.

Reason for revert: causing failures on mac13-arm64-rel and mac12-arm64-rel

Original change's description:
> Prerender: Do not invoke show/hide/unload events on prerender cancellation
>
> As it's hard for prerendered pages to ensure triggering events on
> cancellation, we decided not to trigger unload events on cancellation.
> Also, show/hide should not be triggered while prerendering, but these
> are unexpected dispatched before the unload events.
>
> This CL adds explicit code to omit their handling to make the behavior
> stable.
>
> Bug: 1222551, 1289245
> Change-Id: Ic019f767d6310166b4d6b2de576c36e771dddff0
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5198952
> Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
> Commit-Queue: Takashi Toyoshima <toyoshim@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1248027}

Bug: 1222551, 1289245, 1519110
Change-Id: I354dd8060a22e0806473f637a048973a77045115
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5204625
Commit-Queue: Jood Hajeer <jood@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Jood Hajeer <jood@google.com>
Cr-Commit-Position: refs/heads/main@{#1248069}
11 files changed
tree: 585352ba7c6963ed32b622652a6c3fca6483f531
  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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