Reland "Topics: web platform tests for <img> request header"

This reverts commit 679cb25d08ade00885ff5c83809562c1abe891cc.

Reason for revert: Likely fixed the original problem for the revert: splitting the failing browsertest in two so that the image wouldn't be cached.

Original change's description:
> Revert "Topics: web platform tests for <img> request header"
>
> This reverts commit 3ca9787e7b4381920a1fecdc8c5942720e7b5a68.
>
> Reason for revert: See https://issues.chromium.org/u/1/issues/387306732
>
> Original change's description:
> > Topics: web platform tests for <img> request header
> >
> > Bug: 382532794
> > Change-Id: I4b9729330f43869f5defb7116343ce34d7f159a2
> > Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6081796
> > Reviewed-by: Yao Xiao <yaoxia@chromium.org>
> > Commit-Queue: Abigail Katcoff <abigailkatcoff@chromium.org>
> > Cr-Commit-Position: refs/heads/main@{#1401526}
>
> Bug: 382532794
> Change-Id: I2982af322b0099cd732e9a011adca418a273cf6a
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6137099
> Commit-Queue: David Yeung <dayeung@chromium.org>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#1401649}

Bug: 382532794
Change-Id: I1aa96ca2e19bb0e5a4f0bc80777de38e40724d28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6149252
Commit-Queue: Abigail Katcoff <abigailkatcoff@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#1402540}
7 files changed
tree: f91afa89589bef59117d3344c190b450bc677b86
  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

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