native_heapdump_viewer_tests: update ParseNativeHeap() to pass 4 arguments

fca3084 introduced an additional argument to ParseNativeHeap().
This CL updates the test to reflect the same.

Test: "python native_heapdump_viewer_tests.py" executes without
      any errors.

Change-Id: I6c196205ead2cb6abd4a646a3ac53e62ae3e5038
1 file changed