Use grpc:: counterparts in ruby code generator
diff --git a/src/compiler/ruby_generator.h b/src/compiler/ruby_generator.h
index 4dd38e0..a2ab36d 100644
--- a/src/compiler/ruby_generator.h
+++ b/src/compiler/ruby_generator.h
@@ -34,17 +34,11 @@
#ifndef GRPC_INTERNAL_COMPILER_RUBY_GENERATOR_H
#define GRPC_INTERNAL_COMPILER_RUBY_GENERATOR_H
-#include <string>
-
-namespace google {
-namespace protobuf {
-class FileDescriptor;
-} // namespace protobuf
-} // namespace google
+#include "src/compiler/config.h"
namespace grpc_ruby_generator {
-std::string GetServices(const google::protobuf::FileDescriptor *file);
+grpc::string GetServices(const grpc::protobuf::FileDescriptor *file);
} // namespace grpc_ruby_generator