Add BasicAsyncTrack and use in TrackWithControllerAdapter.

- BasicAsyncTrack defines an abstract TrackLike class which does the
  heavy lifting of working out when new data is required and calls the
  appropriate abstract methods, allowing overidding classes to provide
  their own functionality.
- Allows overriding tracks to implemented purely using renderCavnas()
  and onBoundsChange() hooks.
- This CL also converts TrackWithControllerAdapter to use
  BasicAsyncTrack, as they perform virtually the same task, but the
  former being a more specific version which adapts controller-driven
  tracks.

Change-Id: Id763bafe5f956f468f222f4f2e002c15af67bf61
2 files changed
tree: 26a8dbdfcd5e41c93ce04f4c8fdde308a4fec574
  1. .github/
  2. bazel/
  3. build_overrides/
  4. buildtools/
  5. debian/
  6. docs/
  7. examples/
  8. gn/
  9. include/
  10. infra/
  11. protos/
  12. python/
  13. src/
  14. test/
  15. third_party/
  16. tools/
  17. ui/
  18. .clang-format
  19. .clang-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gn
  24. .style.yapf
  25. Android.bp
  26. Android.bp.extras
  27. BUILD
  28. BUILD.extras
  29. BUILD.gn
  30. CHANGELOG
  31. codereview.settings
  32. DIR_METADATA
  33. heapprofd.rc
  34. LICENSE
  35. meson.build
  36. METADATA
  37. MODULE_LICENSE_APACHE2
  38. OWNERS
  39. perfetto.rc
  40. PerfettoIntegrationTests.xml
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. TEST_MAPPING
  45. traced_perf.rc
  46. 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.