Add chartjson_result_file argument to isac_fix_test.
Add chartjson_result_file argument to isac_fix_test.

So we can report perf results using JSON and not parsing stdout.

I reordered the way the arguments are parsed, so that options go
at the end, and not at the middle, which is an awkward place to put them.

Regular usage specifying [-I], bottleneck_value, infile and outfile
shouldn't be affected.

Bug: chromium:807737
Change-Id: Ida863846400326c33e443d723f384971b891b6e5
Reviewed-on: https://webrtc-review.googlesource.com/47161
Reviewed-by: Henrik Lundin <b9599afb29b1fa4305dba8bb04f760bf0c9c9471@webrtc.org>
Reviewed-by: Oleh Prypin <5baa3e04f9bd6ba7a2a4b56625a3c84f19237cdb@webrtc.org>
Commit-Queue: Edward Lemur <d05609f027dc667cc37492b1dc1bdea5d60fa82a@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#21873}
ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc