Make Address Bar Position tip phone-only

This CL updates the address bar position tip to check if the device form
factor is a phone before displaying.

The address bar selection feature is currently only available on
iPhones, so this change ensures the tip is not shown on other device
form factors, e.g., iPads, where the feature is not supported.

This is done by:

* Adding a new constant `kIsPhoneFormFactor` to represent the device
  form factor signal.

* Updating `kTipRequiredSignals` to include `kIsPhoneFormFactor` as a
  requirement for the address bar position tip.

* Modifying the corresponding query generation logic to include
  `kIsPhoneFormFactor`.

* Adding a new test to verify that the tip is not displayed when the
  device is not a phone.

Low-Coverage-Reason: COVERAGE_UNDERREPORTED

Fixed: 374063027
Change-Id: I9985bc9dc267febf2e7fdb93e8bc9be0c822746b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5938750
Reviewed-by: Scott Yoder <scottyoder@google.com>
Commit-Queue: Benjamin Williams <bwwilliams@google.com>
Cr-Commit-Position: refs/heads/main@{#1369990}
6 files changed
tree: f466d47b772b1b239c0e5e532b6f9364a6bd3f23
  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. google_update/
  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. WATCHLISTS
README.md

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