Add dep of reverse_service to simple_serivce.
Add dep of reverse_service to simple_serivce.

reverse_service/reverse_socket.cc needs NaClSimpleRevServiceCtor, see
http://code.google.com/p/chromium/source/search?q=NaClSimpleRevServiceCtor&origq=NaClSimpleRevServiceCtor&btnG=Search+Trunk

This issue is currently being covered up by gyp, since the makefiles
it generates always link like -Wl,start-group <libs> -Wl,end-group.
Since all current users of reverse_service also require
simple_service, the link time dependencies are eventually resolved.
However, the dependency should be made explicit, since it does exist.

BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10382218

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@8643 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,sbc100/native_client,sbc100/native_client,sbc100/native_client,nacl-webkit/native_client,nacl-webkit/native_client