Revert of Remove {media,p2p,pc,xmllite,xmpp}_tests.gypi files.

webrtc/libjingle/xmllite/xmllite_tests.gypi

Index: webrtc/libjingle/xmllite/xmllite_tests.gypi
diff --git a/webrtc/libjingle/xmllite/xmllite_tests.gypi b/webrtc/libjingle/xmllite/xmllite_tests.gypi
new file mode 100644
index 0000000000000000000000000000000000000000..600a0f55a788669cff3996f6ea2d8ba564f50b19
--- /dev/null
+++ b/webrtc/libjingle/xmllite/xmllite_tests.gypi
@@ -0,0 +1,28 @@
+# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+{
+  'includes': [ '../../build/common.gypi', ],
+  'targets': [
+    {
+      'target_name': 'rtc_xmllite_unittest',
+      'type': 'none',
+      'direct_dependent_settings': {
+        'sources': [
+          'qname_unittest.cc',
+          'xmlbuilder_unittest.cc',
+          'xmlelement_unittest.cc',
+          'xmlnsstack_unittest.cc',
+          'xmlparser_unittest.cc',
+          'xmlprinter_unittest.cc',
+        ],
+      },
+    },
+  ],
+}
+