Convert .ninja_log files to chrome's about:tracing format.
Idea from Nick Carter, initial implementation from Richard Smith.
$ ./ninja-build-to-chrome-trace
Converts one (or several) .ninja_log files into chrome's about:tracing format
Usage:
rm $BUILDDIR/.ninja_log && ninja -C $BUILDDIR
ninja-build-to-chrome-trace $BUILDDIR/.ninja_log > trace.json
(If you don't have time for a clean build, at least run
`ninja -C $BUILDDIR -t recompact` first.)