[PWA] Create stub v2 navigation throttle on ChromeOS

This CL creates the stub navigation throttle on ChromeOS that will be
used to implement the behavior of navigation capturing v2 on CrOS.
Currently, the throttle allows all navigations to proceed without
stopping, and is only initialized if v2 is enabled on ChromeOS.

Future CLs will build out the behavior of this throttle.

Bug: 366547977
Change-Id: I594930d911109500fcd9c4d0f8a29f68969be8fc
Fixed: 391436219
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6197712
Reviewed-by: Marijn Kruisselbrink <mek@chromium.org>
Commit-Queue: Dibyajyoti Pal <dibyapal@chromium.org>
Reviewed-by: May Siem <msiem@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1412470}
4 files changed
tree: 03dde5b8a9ac92bba5e8b95a9c2aee4320438cdd
  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. description
  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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