Convert JSON object messages into strings if necessary. It is a workarround for http://crbug.com/448167

Due to performance reasons devtools send messages as JSON objects
instead of strings since Blink #309164. It significantly reduces
message serialization time on the browser side.

See https://codereview.chromium.org/784513002.

BUG=448167
TEST=stringAndObjectPayload in extras.about_tracing.inspector_tracing_controller_client_test
2 files changed
tree: fdf1625fdba8ded2204027df74c27f79c97031e7
  1. .allow-devtools-save
  2. .bowerrc
  3. .gitignore
  4. AUTHORS
  5. BUILD.gn
  6. LICENSE
  7. OWNERS
  8. README.md
  9. bin/
  10. bower.json
  11. examples/
  12. hooks/
  13. run_dev_server
  14. run_tests
  15. skp_data/
  16. test_data/
  17. third_party/
  18. trace2html
  19. trace_viewer.gyp
  20. trace_viewer/
  21. vulcanize_trace_viewer
  22. why_imported
README.md

Trace-Viewer is the javascript frontend for Chrome about:tracing and Android systrace.

It provides rich analysis and visualization capabilities for many types of trace files. Its particularly good at viewing linux kernel traces and Chrome's trace_event format. Trace viewer can be embedded as a component in your own code, or used from a plain checkout to turn trace files into standalone, emailable HTML files from the commandline:

trace2html my_trace.json --output=my_trace.html && open my_trace.html

Its easy to extend trace viewer to support your favorite trace format, or add domain specific visualizations to the UI to simplify drilling down into complex data.

Contributing, quick version

We welcome contributions! To hack on this code, from toplevel: ./run_dev_server

In any browser, navigate to http://localhost:8003/

Make sure tests pass before sending us a PR. For more details, check out the trace viewer wiki.