make SetReceiveBufferSize and SetSendBufferSize return net error codes (instead of bools)

jingle/glue/fake_ssl_client_socket.cc

Index: jingle/glue/fake_ssl_client_socket.cc
diff --git a/jingle/glue/fake_ssl_client_socket.cc b/jingle/glue/fake_ssl_client_socket.cc
index 9d722c7861b7714f7ecfa80d0419de456302c9b2..4cc686718249005f45820422eb93966bbb026a50 100644
--- a/jingle/glue/fake_ssl_client_socket.cc
+++ b/jingle/glue/fake_ssl_client_socket.cc
@@ -103,11 +103,11 @@ int FakeSSLClientSocket::Write(net::IOBuffer* buf, int buf_len,
   return transport_socket_->Write(buf, buf_len, callback);
 }
 
-bool FakeSSLClientSocket::SetReceiveBufferSize(int32 size) {
+int FakeSSLClientSocket::SetReceiveBufferSize(int32 size) {
   return transport_socket_->SetReceiveBufferSize(size);
 }
 
-bool FakeSSLClientSocket::SetSendBufferSize(int32 size) {
+int FakeSSLClientSocket::SetSendBufferSize(int32 size) {
   return transport_socket_->SetSendBufferSize(size);
 }