Use lower-case JIDs when generating signatures for messages sent to CRD bot.

remoting/signaling/jid_util_unittest.cc

+// 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 "remoting/signaling/jid_util.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace remoting {
+
+TEST(JidUtil, NormalizeJid) {
+  EXPECT_EQ(NormalizeJid("USER@DOMAIN.com"), "user@domain.com");
+  EXPECT_EQ(NormalizeJid("user@domain.com"), "user@domain.com");
+  EXPECT_EQ(NormalizeJid("USER@DOMAIN.com/RESOURCE"),
+            "user@domain.com/RESOURCE");
+  EXPECT_EQ(NormalizeJid("USER@DOMAIN.com/"), "user@domain.com/");
+}
+
+}  // namespace remoting