Stop sending unnecessary subresource requests with Static Routing API

This is a bug fix CL.

Before this CL, there are unnecessary network requests triggered from
SWSubresourceLoader. This is occurred when
`race-network-and-fetch-handler` is specified for the main resource
load, and there are no matched router rules for subresource.

This information is passed to the the renderer via
`fetch_handler_bypass_option`, which is retrieved through
`controller_connector_` in SWSubresourceLoader.

When `race-network-and-fetch-handler` is specified and the network
request is dispatched,
`ServiceWorkerFetchHandlerBypassOption::kRaceNetworkRequest` is set to
fetch_handler_bypass_option, and the subresource loader also starts the
network request without checking other conditions.

I believe this is the bug introduced when we add the
BestEffortServiceWorker behavior to the static routing API. We don't
explore BestEffortServiceWorker anymore and it was taken over by
SWAutoPreload. We can safely remove code triggering the network request
in the resource loader.


Bug: 376723182
Change-Id: Ifda20a2ab8c60dd8dc7cdb286d1440cf0766f684
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5981616
Commit-Queue: Shunya Shishido <sisidovski@chromium.org>
Reviewed-by: Keita Suzuki <suzukikeita@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1377047}
2 files changed
tree: 5f84bf0d758b1e14415625543e831f288f1e1e60
  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. crypto/
  16. dbus/
  17. device/
  18. docs/
  19. extensions/
  20. fuchsia_web/
  21. gin/
  22. google_apis/
  23. gpu/
  24. headless/
  25. infra/
  26. ios/
  27. ipc/
  28. media/
  29. mojo/
  30. native_client_sdk/
  31. net/
  32. pdf/
  33. ppapi/
  34. printing/
  35. remoting/
  36. rlz/
  37. sandbox/
  38. services/
  39. skia/
  40. sql/
  41. storage/
  42. styleguide/
  43. testing/
  44. third_party/
  45. tools/
  46. ui/
  47. url/
  48. webkit/
  49. .clang-format
  50. .clang-tidy
  51. .clangd
  52. .git-blame-ignore-revs
  53. .gitallowed
  54. .gitattributes
  55. .gitignore
  56. .gitmodules
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython3
  61. .yapfignore
  62. ATL_OWNERS
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. CPPLINT.cfg
  68. CRYPTO_OWNERS
  69. DEPS
  70. DIR_METADATA
  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

Logo Chromium

Chromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web.

The project's web site is https://www.chromium.org.

To check out the source code locally, don't use git clone! Instead, follow the instructions on how to get the code.

Documentation in the source is rooted in docs/README.md.

Learn how to Get Around the Chromium Source Code Directory Structure.

For historical reasons, there are some small top level directories. Now the guidance is that new top level directories are for product (e.g. Chrome, Android WebView, Ash). Even if these products have multiple executables, the code should be in subdirectories of the product.

If you found a bug, please file it at https://crbug.com/new.