instrumented_libraries: improve run_docker.sh

Mount chromium src dir instead of only the output directory so that
paths are more consistent (for e.g. symbolization).

TBR=eugenis@chromium.org

Bug: 751218
Change-Id: I25baceb53a63c6fdd1f422dff364036d49f29afa
Reviewed-on: https://chromium-review.googlesource.com/942124
Commit-Queue: Oliver Chang <ochang@chromium.org>
Reviewed-by: Oliver Chang <ochang@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#540065}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 4054275d1ac78c1a93717417edbb0b7737f6e91c
1 file changed