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

net/socket/ssl_client_socket_unittest.cc

Index: net/socket/ssl_client_socket_unittest.cc
diff --git a/net/socket/ssl_client_socket_unittest.cc b/net/socket/ssl_client_socket_unittest.cc
index 0c6b33563acd377bd5b2b28e1f854f32778ddc91..7dd9d640cab8f6fd6baf96b0b00fb36459bf97d1 100644
--- a/net/socket/ssl_client_socket_unittest.cc
+++ b/net/socket/ssl_client_socket_unittest.cc
@@ -101,10 +101,10 @@ class WrappedStreamSocket : public StreamSocket {
                     const CompletionCallback& callback) OVERRIDE {
     return transport_->Write(buf, buf_len, callback);
   }
-  virtual bool SetReceiveBufferSize(int32 size) OVERRIDE {
+  virtual int SetReceiveBufferSize(int32 size) OVERRIDE {
     return transport_->SetReceiveBufferSize(size);
   }
-  virtual bool SetSendBufferSize(int32 size) OVERRIDE {
+  virtual int SetSendBufferSize(int32 size) OVERRIDE {
     return transport_->SetSendBufferSize(size);
   }