Remove third_party/polymer from .gitignore

third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-manager.html

Index: third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-manager.html
diff --git a/third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-manager.html b/third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-manager.html
deleted file mode 100644
index c66f9aa77c031476d782fe54af269b0903ddac28..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components/iron-overlay-behavior/iron-overlay-manager.html
+++ /dev/null
@@ -1,107 +0,0 @@
-<!--
-@license
-Copyright (c) 2015 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
--->
-
-<link rel="import" href="../polymer/polymer.html">
-
-<script>
-
-  Polymer.IronOverlayManager = (function() {
-
-    var overlays = [];
-    var DEFAULT_Z = 10;
-    var backdrops = [];
-
-    // track overlays for z-index and focus managemant
-    function addOverlay(overlay) {
-      var z0 = currentOverlayZ();
-      overlays.push(overlay);
-      var z1 = currentOverlayZ();
-      if (z1 <= z0) {
-        applyOverlayZ(overlay, z0);
-      }
-    }
-
-    function removeOverlay(overlay) {
-      var i = overlays.indexOf(overlay);
-      if (i >= 0) {
-        overlays.splice(i, 1);
-        setZ(overlay, '');
-      }
-    }
-
-    function applyOverlayZ(overlay, aboveZ) {
-      setZ(overlay, aboveZ + 2);
-    }
-
-    function setZ(element, z) {
-      element.style.zIndex = z;
-    }
-
-    function currentOverlay() {
-      return overlays[overlays.length-1];
-    }
-
-    function currentOverlayZ() {
-      var z;
-      var current = currentOverlay();
-      if (current) {
-        var z1 = window.getComputedStyle(current).zIndex;
-        if (!isNaN(z1)) {
-          z = Number(z1);
-        }
-      }
-      return z || DEFAULT_Z;
-    }
-
-    function focusOverlay() {
-      var current = currentOverlay();
-      // We have to be careful to focus the next overlay _after_ any current
-      // transitions are complete (due to the state being toggled prior to the
-      // transition). Otherwise, we risk infinite recursion when a transitioning
-      // (closed) overlay becomes the current overlay.
-      //
-      // NOTE: We make the assumption that any overlay that completes a transition
-      // will call into focusOverlay to kick the process back off. Currently:
-      // transitionend -> _applyFocus -> focusOverlay.
-      if (current && !current.transitioning) {
-        current._applyFocus();
-      }
-    }
-
-    function trackBackdrop(element) {
-      // backdrops contains the overlays with a backdrop that are currently
-      // visible
-      if (element.opened) {
-        backdrops.push(element);
-      } else {
-        var index = backdrops.indexOf(element);
-        if (index >= 0) {
-          backdrops.splice(index, 1);
-        }
-      }
-    }
-
-    function getBackdrops() {
-      return backdrops;
-    }
-
-    return {
-      addOverlay: addOverlay,
-      removeOverlay: removeOverlay,
-      currentOverlay: currentOverlay,
-      currentOverlayZ: currentOverlayZ,
-      focusOverlay: focusOverlay,
-      trackBackdrop: trackBackdrop,
-      getBackdrops: getBackdrops
-    };
-
-  })();
-
-</script>