Update Valgrind interceptors for new malloc
Update Valgrind interceptors for new malloc

The valgrind magic needs to understand the different innards of the new
allocator.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=2271
TEST= memcheck_bot_tests

R=eugenis@google.com

Review URL: http://codereview.chromium.org/8018008

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@6765 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

nacl-webkit/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,nacl-webkit/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client