Fix HandleDocumentLoad for nexes that get their content that way.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=1926,http://code.google.com/p/nativeclient/issues/detail?id=1931
TEST= manual

Review URL: http://codereview.chromium.org/7204047

git-svn-id: svn://svn.chromium.org/native_client/trunk/src/native_client@5730 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2
1 file changed