Fix initialization of allocation timeout value.

Fix initialization of allocation timeout value.

The allocation timeout value should not be initialized to 0, that
triggers a collection at the first allocation which breaks assumptions
for some test cases.

R=ricow@chromium.org
TEST=cctest/test-heap/Iteration

Committed: http://code.google.com/p/v8/source/detail?r=9748

[Michael Starzinger, 2011-10-14 11:43:35]

PTAL.

[Rico, 2011-10-20 09:58:13]

LGTM