Update toolchain DEPS to 6655
Update toolchain DEPS to 6655

BUG= none
TEST= trybots

R=jvoung@google.com,sanga@google.com

Review URL: http://codereview.chromium.org/7816002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@6659 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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