Re-enable browser tests on the PNaCl Windows toolchain bots.
Re-enable browser tests on the PNaCl Windows toolchain bots.

TBR= jvoung
BUG= http://code.google.com/p/nativeclient/issues/detail?id=2286
Review URL: https://chromiumcodereview.appspot.com/9442018

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@7874 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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