Added missing benchmark_config.* files
diff --git a/test/cpp/util/benchmark_config.cc b/test/cpp/util/benchmark_config.cc
new file mode 100644
index 0000000..1f019c9
--- /dev/null
+++ b/test/cpp/util/benchmark_config.cc
@@ -0,0 +1,63 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <gflags/gflags.h>
+#include "test/cpp/util/benchmark_config.h"
+
+DEFINE_bool(enable_log_reporter, false,
+            "Enable reporting of benchmark results through GprLog");
+
+// In some distros, gflags is in the namespace google, and in some others,
+// in gflags. This hack is enabling us to find both.
+namespace google {}
+namespace gflags {}
+using namespace google;
+using namespace gflags;
+
+namespace grpc {
+namespace testing {
+
+void InitBenchmark(int* argc, char*** argv, bool remove_flags) {
+  ParseCommandLineFlags(argc, argv, remove_flags);
+}
+
+std::vector<std::unique_ptr<Reporter> > InitBenchmarkReporters() {
+  std::vector<std::unique_ptr<Reporter> > reporters;
+  if (FLAGS_enable_log_reporter) {
+    reporters.emplace_back(new GprLogReporter("LogReporter"));
+  }
+  return reporters;
+}
+
+}  // namespace testing
+}  // namespace grpc