veyron/runtimes/google/ipc: Cleanup IPC benchmarks.
Go 1.4 TestMain allows to run a custom main even with go test command.
This cl adds a new benchmark utils to inject additional stats (histogram)
outputs to the benchmark results.
I also renamed ipc/benchmarks to ipc/benchmark for consistency
as all other benchmark directories.
A new benchmark results show that IPC performance (specially with small
payloads) gets slowed down by 2X than 2-weeks ago.
Change-Id: Iccc136a6363ddb33e27fc72d0940fa8f8c00f178
26 files changed