Update copyright to 2015
diff --git a/src/core/surface/server_chttp2.c b/src/core/surface/server_chttp2.c
index 3b6abb7..c18fc90 100644
--- a/src/core/surface/server_chttp2.c
+++ b/src/core/surface/server_chttp2.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2014, Google Inc.
+ * Copyright 2015, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -127,4 +127,4 @@
     grpc_tcp_server_destroy(tcp);
   }
   return 0;
-}
+}
\ No newline at end of file