desktop-pwas: Implement Protocol Handling Origin Trial

This CL updates the Blink side Runtime Enabled Feature (REF) flag
"ParseUrlProtocolHandler" for use in an origin trial by making its
status "experimental".

This also makes the availability of the feature an "or" of the REF and
the pre-existing chrome://flags/#enable-desktop-pwas-protocol-handling
flag by governing whether the manifest parser sees the
"protocol_handlers" field or not.

If either flag is enabled the browser will receive the
"protocol_handlers" field and act as if it's enabled. If both flags are
disabled the "protocol_handlers" field will not be parsed.

A future CL will add the ability for the "protocol_handlers" of an app
to be updated based on the change of these values (e.g.: if the origin
trial token expires).

Bug: 1019239
Change-Id: Ic6a75fa0042c675205b3ac4224d0263f4e753226
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2822332
Commit-Queue: Fabio Rocha <fabio.rocha@microsoft.com>
Reviewed-by: dstockwell <dstockwell@google.com>
Reviewed-by: Daniel Murphy <dmurph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#875986}
2 files changed
tree: 2f4a232077a63339e30d88932a58af4182ef7a94
  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. cloud_print/
  13. codelabs/
  14. components/
  15. content/
  16. courgette/
  17. crypto/
  18. dbus/
  19. device/
  20. docs/
  21. extensions/
  22. fuchsia/
  23. gin/
  24. google_apis/
  25. google_update/
  26. gpu/
  27. headless/
  28. infra/
  29. ios/
  30. ipc/
  31. jingle/
  32. media/
  33. mojo/
  34. native_client_sdk/
  35. net/
  36. pdf/
  37. ppapi/
  38. printing/
  39. remoting/
  40. rlz/
  41. sandbox/
  42. services/
  43. skia/
  44. sql/
  45. storage/
  46. styleguide/
  47. testing/
  48. third_party/
  49. tools/
  50. ui/
  51. url/
  52. weblayer/
  53. .clang-format
  54. .clang-tidy
  55. .eslintrc.js
  56. .git-blame-ignore-revs
  57. .gitattributes
  58. .gitignore
  59. .gn
  60. .vpython
  61. .vpython3
  62. .yapfignore
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. ENG_REVIEW_OWNERS
  70. LICENSE
  71. LICENSE.chromium_os
  72. OWNERS
  73. PRESUBMIT.py
  74. PRESUBMIT_test.py
  75. PRESUBMIT_test_mocks.py
  76. README.md
  77. 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.