Desktop UI benchmark: update metrics to the latest change

Recent changes to custom metric does not require a custom_metric: prefix
to the trace events. Metrics are defined inside the story
definition instead.

The CL also adds feature prefix(e.g. tab_search: webui_tab_strip:) to
the js reported events. This will help to narrow down problems found by
the auto-triage report.

Also rename :benchmark_begin, :benchmark_end and
:benchmark_value to :metric_begin, :metric_end and :metric_value to
avoid confusion with the term "benchmark" in telemetry.

Related CLs:
https://chromium-review.googlesource.com/c/catapult/+/2953514
https://chromium-review.googlesource.com/c/catapult/+/2965033

Bug: 1201243
Change-Id: Ida3897961732c48e9525ecfdc9adc91425fbcae7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2954910
Commit-Queue: Yuheng Huang <yuhengh@chromium.org>
Reviewed-by: Thomas Lukaszewicz <tluk@chromium.org>
Reviewed-by: Roman Arora <romanarora@chromium.org>
Reviewed-by: John Lee <johntlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#893703}
12 files changed
tree: b7961b783ab1bff05383a6db57f43c57ce256df9
  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. .mailmap
  61. .vpython
  62. .vpython3
  63. .yapfignore
  64. AUTHORS
  65. BUILD.gn
  66. CODE_OF_CONDUCT.md
  67. codereview.settings
  68. DEPS
  69. DIR_METADATA
  70. ENG_REVIEW_OWNERS
  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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