glic: use desktop widget for web modals

Using desktop widgets allows the web modal dialogs to extend beyond the
boundary of the glic window on Windows.

This also kicks off the larger project that intends to use desktop
widgets everywhere on desktop aura.

screencast:
https://drive.google.com/file/d/1TItT0ZqSfkYtvpWHMDpimKfaBftq1q0H/view?usp=sharing.
It hacks to invoke DesktopDataControlsDialog during glic startup.

Investigation doc (internal):
https://docs.google.com/document/d/1rY7OVmEry6-SjuL8bWABXxJaQofrOphVblNcqoTamcg/edit?pli=1&tab=t.0#heading=h.9t8nfprvrbr2

Bug: b:409382820, 346974105
Change-Id: I15ff283dd46bef1519e64510e4ea6594131fa767
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6578297
Reviewed-by: Erik Chen <erikchen@chromium.org>
Commit-Queue: Keren Zhu <kerenzhu@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1464928}
8 files changed
tree: 71d82984d01d93dd36d63c29143a7cc9cff945af
  1. .github/
  2. android_webview/
  3. apps/
  4. ash/
  5. base/
  6. build/
  7. build_overrides/
  8. buildtools/
  9. cc/
  10. chrome/
  11. chromecast/
  12. chromeos/
  13. codelabs/
  14. components/
  15. content/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia_web/
  22. gin/
  23. google_apis/
  24. gpu/
  25. headless/
  26. infra/
  27. ios/
  28. ipc/
  29. media/
  30. mojo/
  31. native_client_sdk/
  32. net/
  33. pdf/
  34. ppapi/
  35. printing/
  36. remoting/
  37. rlz/
  38. sandbox/
  39. services/
  40. skia/
  41. sql/
  42. storage/
  43. styleguide/
  44. testing/
  45. third_party/
  46. tools/
  47. ui/
  48. url/
  49. webkit/
  50. .clang-format
  51. .clang-tidy
  52. .clangd
  53. .git-blame-ignore-revs
  54. .gitallowed
  55. .gitattributes
  56. .gitignore
  57. .gitmodules
  58. .gn
  59. .mailmap
  60. .rustfmt.toml
  61. .vpython3
  62. .yapfignore
  63. ATL_OWNERS
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. CPPLINT.cfg
  69. CRYPTO_OWNERS
  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. SECURITY_OWNERS
  80. WATCHLISTS
README.md

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