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This change moves towards the new libheap_profiler + heap_dump for
profiling native allocations, instead of lib.debug.malloc.
It introduces the code to install the library in the system (wrapping
the Android zygote) and the parsers.
Compared to the lib.debug.malloc, libheap_profiler is much much faster
(less overhead) and able to hook also mmaps. Its output is very
detailed and allows to get stack traces for each VM region. This will
make it possible to intersect, in the near future, mmaps and native
stack traces.
This change also introduces the support to multiple ABIs to support
both arm and arm64.

BUG=340294
NOTRY=true

Review URL: https://codereview.chromium.org/549313006

Cr-Commit-Position: refs/heads/master@{#295031}