[Reland] Add RPATH to shared libraries

Adds a fix for components/crash/content/tools/generate_breakpad_symbols.py which
saw significant slowdown causing telemetry_unittests and
telemetry_perf_unittests to timeout on the Linux Debug bot.  On my machine, the
time for this script to run is reduced from ~4m30s to ~6s.

> Fixes libfontconfig.so not being able to find libfreetype_harfbuzz.so:
>
> $ ldd libfontconfig.so | grep freetype_harfbuzz
>   libfreetype_harfbuzz.so => not found
> $ ls libfreetype_harfbuzz.so
> libfreetype_harfbuzz.so

TBR=dpranke
R=thestig
CC=mmoroz
BUG=913070,911836,912366
CQ_INCLUDE_TRYBOTS=luci.chromium.try:linux_chromium_dbg_ng

Change-Id: I94faed54a4ea9d50b8db38ca8c41b65d26e2bd5f
Reviewed-on: https://chromium-review.googlesource.com/c/1371080
Reviewed-by: Thomas Anderson <thomasanderson@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#615975}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: dbeccd05af1a81cfa3e74f4f599a2bc8ff4adc5b
2 files changed