Polymer elements added to third_party/polymer.

third_party/polymer/components/core-header-panel/core-header-panel.css

Index: third_party/polymer/components/core-header-panel/core-header-panel.css
diff --git a/third_party/polymer/components/core-header-panel/core-header-panel.css b/third_party/polymer/components/core-header-panel/core-header-panel.css
new file mode 100644
index 0000000000000000000000000000000000000000..31dcce5e85917877efdd5ab3bdc01acdc335d7a8
--- /dev/null
+++ b/third_party/polymer/components/core-header-panel/core-header-panel.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.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+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.txt
+*/
+
+:host {
+  display: block;
+  position: relative;
+}
+
+#outerContainer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  overflow-y: auto;
+  overflow-x: hidden;
+  -webkit-overflow-scrolling: touch;
+}
+
+#mainPanel {
+  position: relative;
+}
+
+#mainContainer {
+  position: relative;
+  overflow-y: auto;
+  overflow-x: hidden;
+  -webkit-overflow-scrolling: touch;
+}
+
+#dropShadow {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: 6px;
+  box-shadow: inset 0px 5px 6px -3px rgba(0, 0, 0, 0.4);
+}
+
+#dropShadow.hidden {
+  display: none;
+}
+
+/* 
+mode: scroll 
+*/
+:host([mode=scroll]) #mainContainer {
+  overflow: visible;
+}
+
+/*
+mode: cover
+*/
+:host([mode=cover]) #mainPanel {
+  position: static;
+}
+
+:host([mode=cover]) #mainContainer {
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+}
+
+:host([mode=cover]) #dropShadow {
+  position: static;
+  width: 100%;
+}