Re-land: Instrumented libraries: add a target for pre-built libraries.

With use_prebuilt_instrumented_libraries=1 in GYP_DEFINES, binaries are now
unpacked from archive and placed into output dir.

BUG=462636
TBR=glider@chromium.org, thakis@chromium.org

Review URL: https://codereview.chromium.org/1003273006

Cr-Original-Commit-Position: refs/heads/master@{#321846}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 3f04f1b92b7b490cd9ae9537dbc7b975ce38a572
2 files changed