HistogramName interning

- Add necessary fields for histogram names interning
- Add processing of interned fields by trace processor

This change does not enable the interning of histogram names yet.
See: https://crrev.com/c/2431566

Change-Id: I52e47061fe8a5b70ad525624e1d0e93832100fe9
Bug: 1119834
9 files changed
tree: e88d0d6212e7b77c361760216260b7f94341fb61
  1. bazel/
  2. build_overrides/
  3. buildtools/
  4. debian/
  5. docs/
  6. examples/
  7. gn/
  8. include/
  9. infra/
  10. protos/
  11. src/
  12. test/
  13. tools/
  14. ui/
  15. .clang-format
  16. .clang-tidy
  17. .gitignore
  18. .gn
  19. .style.yapf
  20. Android.bp
  21. Android.bp.extras
  22. BUILD
  23. BUILD.extras
  24. BUILD.gn
  25. CHANGELOG
  26. codereview.settings
  27. heapprofd.rc
  28. LICENSE
  29. METADATA
  30. MODULE_LICENSE_APACHE2
  31. OWNERS
  32. perfetto.rc
  33. PRESUBMIT.py
  34. README.chromium
  35. README.md
  36. TEST_MAPPING
  37. traced_perf.rc
  38. WORKSPACE
README.md

Perfetto - System profiling, app tracing and trace analysis

Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.

See https://perfetto.dev/docs or the /docs/ directory for documentation.