Convert cr-settings-menu to Polymer 0.8

chrome/browser/resources/settings/settings_menu/settings_menu.css

Index: chrome/browser/resources/settings/settings_menu/settings_menu.css
diff --git a/chrome/browser/resources/settings/settings_menu/settings_menu.css b/chrome/browser/resources/settings/settings_menu/settings_menu.css
new file mode 100644
index 0000000000000000000000000000000000000000..6c5abaa0df29067152c7140ee35a47a5864ca2ef
--- /dev/null
+++ b/chrome/browser/resources/settings/settings_menu/settings_menu.css
@@ -0,0 +1,19 @@
+:host {
+  display: block;
+}
+
+iron-selector {
+  margin: 0;
+  padding-top: 20px;
+}
+
+iron-selector > * {
+  -webkit-padding-start: 40px;
+  font-size: 15px;
+  margin-bottom: 5px;
+  min-height: 45px;
+}
+
+iron-selector > *.iron-selected {
+  background-color: rgb(38, 166, 154);
+}