Fix use-after-free of string memory
Fix use-after-free of string memory

Same as http://codereview.chromium.org/6274020 but in the right repo.


exception->DebugString() returns a temporary scoped to the if{} block
PLUGIN_PRINTF uses the temporary after destruction.

CID 14603 

BUG=none
TEST=none


Review URL: http://codereview.chromium.org/6250056

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@4255 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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