Add cr-toggle-button to Chrome

ui/webui/resources/cr_elements/cr_toggle_button/cr-toggle-button.css

Index: ui/webui/resources/cr_elements/cr_toggle_button/cr-toggle-button.css
diff --git a/ui/webui/resources/cr_elements/cr_toggle_button/cr-toggle-button.css b/ui/webui/resources/cr_elements/cr_toggle_button/cr-toggle-button.css
new file mode 100644
index 0000000000000000000000000000000000000000..ff20d87295fc3ea613084c191771dac13705913b
--- /dev/null
+++ b/ui/webui/resources/cr_elements/cr_toggle_button/cr-toggle-button.css
@@ -0,0 +1,27 @@
+/* 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. */
+
+:host {
+  display: inline-block;
+}
+
+paper-toggle-button::shadow .toggle {
+  background-color: #ECEFF1;

[James Hawkins, 2015/02/09 22:24:35]

nit: Please use rgb.

http://www.chromium.org/developers/web-development-style-guide

[michaelpg, 2015/02/09 22:40:04]

Done.

+}
+
+paper-toggle-button::shadow .toggle-bar {
+  background-color: #263238;
+}
+
+paper-toggle-button::shadow [checked] .toggle {
+  background-color: #009688;
+}
+
+paper-toggle-button::shadow .toggle-ink {
+  color: #B0BEC5;
+}
+
+paper-toggle-button::shadow [checked] .toggle-ink {
+  color: #009688;
+}