Polymer elements added to third_party/polymer.

third_party/polymer/components/core-icon-button/core-icon-button.css

Index: third_party/polymer/components/core-icon-button/core-icon-button.css
diff --git a/third_party/polymer/components/core-icon-button/core-icon-button.css b/third_party/polymer/components/core-icon-button/core-icon-button.css
new file mode 100644
index 0000000000000000000000000000000000000000..60202c36465461a425259bcc45bcb012fcc26e9b
--- /dev/null
+++ b/third_party/polymer/components/core-icon-button/core-icon-button.css
@@ -0,0 +1,75 @@
+/*
+Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE
+The complete set of authors may be found at http://polymer.github.io/AUTHORS
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS
+*/
+
+:host {
+  display: inline-block;
+  box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  user-select: none;
+  -moz-user-select: none;
+  -webkit-user-select: none;
+  border-radius: 2px;
+  padding: 7px;
+  margin: 2px;
+  vertical-align: middle;
+  font-size: 1rem;
+  cursor: pointer;
+}
+
+:host([disabled]) {
+  opacity: 0.6;
+  pointer-events: none;
+}
+
+:host(.outline) {
+  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
+}
+
+:host(:hover:not([disabled])) {
+  box-shadow: 0 1px 0 0 rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.1);
+}
+
+:host(.selected:not([disabled])) {
+  background-color: rgba(0, 0, 0, 0.05);
+  box-shadow: inset 0 1px 0 0 rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.12);
+}
+
+:host(:active:not([disabled]), .selected:active:not([disabled])) {
+  background-color: rgba(0, 0, 0, 0.05);
+  box-shadow: inset 0 1px 0 0 rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.12);
+}
+
+:host(.core-dark-theme.outline) {
+  background-color: rgba(200, 200, 200, 0.05);
+  box-shadow: 0 0 0 1px rgba(200, 200, 200, 0.1);
+}
+
+:host(.core-dark-theme:hover) {
+  background-color: rgba(200, 200, 200, 0.05);
+  box-shadow: 0 1px 0 0 rgba(200, 200, 200, 0.12), 0 0 0 1px rgba(200, 200, 200, 0.1);
+}
+
+:host(.core-dark-theme.selected) {
+  background-color: rgba(220, 220, 220, 0.05);
+  box-shadow: inset 0 1px 0 0 rgba(200, 200, 200, 0.05), 0 0 0 1px rgba(200, 200, 200, 0.12);
+}
+
+:host(.core-dark-theme:active, .core-dark-theme.selected:active) {
+  background-color: rgba(200, 200, 200, 0.05);
+  box-shadow: inset 0 1px 0 0 rgba(200, 200, 200, 0.1), 0 0 0 1px rgba(200, 200, 200, 0.12);
+}
+
+core-icon {
+  pointer-events: none;
+}
+
+/* note: this is a polyfill aware selector */
+:host ::content > :not(core-icon) {
+  margin-left: 4px;
+}