Change native allocations to use growth limit.

Previously native allocation tracking used a GC footprint limit
which would cause GC in the allocating thread. This prevented
excessive growth of the heap but could cause jank due to GC in
the allocating thread. The new behavior is using the growth_limit
instead of the native footprint limit.

Bug: 17006948

Change-Id: I40f30af09bb25596a9f57fa50e2a155fb947b5fe