Use the malloc debug heap dumper.

Instead of having the malloc debug heap dump code live in frameworks
code, call into malloc debug to do the dump.

Test: Ran am dumpheap -n <PID> <FILE> of a process with and without
Test: malloc debug enabled.
Change-Id: I7911a3ee7dcbc79dd11003a24e27ff99c8301d43
1 file changed