Change name of thread_pool files to fixed_size_thread_pool when
appropriate
diff --git a/test/cpp/qps/server_sync.cc b/test/cpp/qps/server_sync.cc
index 1a8516d..d90ff22 100644
--- a/test/cpp/qps/server_sync.cc
+++ b/test/cpp/qps/server_sync.cc
@@ -40,13 +40,13 @@
#include <grpc/support/alloc.h>
#include <grpc/support/host_port.h>
#include <grpc++/config.h>
+#include <grpc++/fixed_size_thread_pool.h>
#include <grpc++/server.h>
#include <grpc++/server_builder.h>
#include <grpc++/server_context.h>
#include <grpc++/server_credentials.h>
#include <grpc++/status.h>
#include <grpc++/stream.h>
-#include <grpc++/thread_pool.h>
#include "test/cpp/qps/qpstest.grpc.pb.h"
#include "test/cpp/qps/server.h"
#include "test/cpp/qps/timer.h"