Allow server endpoint to be injected into the NetMetricsLogUploader from chrome/

components/metrics/url_constants.cc

Index: components/metrics/url_constants.cc
diff --git a/components/metrics/url_constants.cc b/components/metrics/url_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..55d9e13d0e247091459086060b649026ff33748c
--- /dev/null
+++ b/components/metrics/url_constants.cc
@@ -0,0 +1,13 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/metrics/url_constants.h"
+
+namespace metrics {
+
+const char kDefaultMetricsServerUrl[] = "https://clients4.google.com/uma/v2";
+const char kDefaultMetricsMimeType[] = "application/vnd.chrome.uma";
+
+} // namespace metrics
+