TraceLoader: add instrumentation to trace loading

We often get time outs in performance tests but we don't really know
where. We are hoping that with this instrumentation we can get better
info from the bots on which part is timing out.

R=alexrudenko@chromium.org

Bug: none
Change-Id: I7f4e9f0475617ad06d96ad9d9ea4c029d110190d
No-Tree-Checks: True
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/6624655
Reviewed-by: Nancy Li <nancyly@chromium.org>
Commit-Queue: Jack Franklin <jacktfranklin@chromium.org>
Reviewed-by: Alex Rudenko <alexrudenko@chromium.org>
1 file changed
tree: 6d8157fd8f8d73d0207e95c68687ba503904f71e
  1. .vscode/
  2. build_overrides/
  3. config/
  4. docs/
  5. extension-api/
  6. extensions/
  7. front_end/
  8. inspector_overlay/
  9. node_modules/
  10. scripts/
  11. test/
  12. third_party/
  13. v8/
  14. .clang-format
  15. .clang-format-ignore
  16. .editorconfig
  17. .git-blame-ignore-revs
  18. .gitallowed
  19. .gitattributes
  20. .gitignore
  21. .gitmodules
  22. .gn
  23. .mailmap
  24. .npmignore
  25. .npmrc
  26. .style.yapf
  27. .stylelintignore
  28. .stylelintrc.json
  29. AUTHORS
  30. BUILD.gn
  31. codereview.settings
  32. CONTRIBUTING.md
  33. DEPS
  34. DIR_METADATA
  35. eslint.config.mjs
  36. favicon.ico
  37. LICENSE
  38. OWNERS
  39. package-lock.json
  40. package.json
  41. PRESUBMIT.py
  42. README.md
  43. WATCHLISTS
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