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

jingle/glue/fake_ssl_client_socket_unittest.cc

Index: jingle/glue/fake_ssl_client_socket_unittest.cc
diff --git a/jingle/glue/fake_ssl_client_socket_unittest.cc b/jingle/glue/fake_ssl_client_socket_unittest.cc
index f6d8fea5fb3404e5e2e87ba0e318f7b6060b9532..a2981eb2bd4abd7444b9e9aaad413ba66f82a895 100644
--- a/jingle/glue/fake_ssl_client_socket_unittest.cc
+++ b/jingle/glue/fake_ssl_client_socket_unittest.cc
@@ -50,8 +50,8 @@ class MockClientSocket : public net::StreamSocket {
                          const net::CompletionCallback&));
   MOCK_METHOD3(Write, int(net::IOBuffer*, int,
                           const net::CompletionCallback&));
-  MOCK_METHOD1(SetReceiveBufferSize, bool(int32));
-  MOCK_METHOD1(SetSendBufferSize, bool(int32));
+  MOCK_METHOD1(SetReceiveBufferSize, int(int32));
+  MOCK_METHOD1(SetSendBufferSize, int(int32));
   MOCK_METHOD1(Connect, int(const net::CompletionCallback&));
   MOCK_METHOD0(Disconnect, void());
   MOCK_CONST_METHOD0(IsConnected, bool());