Add custom Polymer network icon element

ui/webui/resources/js/cr/polymer_elements/cr_network_icon/cr-network-icon.css

Index: ui/webui/resources/js/cr/polymer_elements/cr_network_icon/cr-network-icon.css
diff --git a/ui/webui/resources/js/cr/polymer_elements/cr_network_icon/cr-network-icon.css b/ui/webui/resources/js/cr/polymer_elements/cr_network_icon/cr-network-icon.css
new file mode 100644
index 0000000000000000000000000000000000000000..ffe9dde04c0d581329de3fdf4bfb3a232f3acc11
--- /dev/null
+++ b/ui/webui/resources/js/cr/polymer_elements/cr_network_icon/cr-network-icon.css
@@ -0,0 +1,29 @@
+/*
+ * 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.
+ */
+
+div {
+    border-style: none;
+    height: 100%;
+    margin: 0px;

[michaelpg, 2015/02/05 06:45:51]

nit: omit "px" here and below for 0 value

[stevenjb, 2015/02/05 22:41:33]

Done.

+    overflow: hidden;
+    padding: 0px;
+    position: relative;
+    width: 100%;
+}
+
+#icon {
+    height: 100%;
+    position: absolute;

[michaelpg, 2015/02/05 06:45:51]

sigh.. alphabetical CSS is a silly rule :-(

[stevenjb, 2015/02/05 22:41:33]

Acknowledged.

+    width: 100%;
+}
+
+#badge {
+    height: 50%;
+    margin-left: 50%;
+    margin-top: 50%;
+    position: absolute;
+    width: 50%;
+}