fix for getDefaultComputedStyles

pkg/web_components/lib/platform.concat.js

Index: pkg/web_components/lib/platform.concat.js
diff --git a/pkg/web_components/lib/platform.concat.js b/pkg/web_components/lib/platform.concat.js
index c4407a2a52284e9023072bf64672016794c062ef..6eea86858eae0662dae51b4d21570024a9388a2c 100644
--- a/pkg/web_components/lib/platform.concat.js
+++ b/pkg/web_components/lib/platform.concat.js
@@ -1840,8 +1840,8 @@ if (typeof WeakMap === 'undefined') {
   global.ObserverTransform = ObserverTransform;
 })(typeof global !== 'undefined' && global && typeof module !== 'undefined' && module ? global : this || window);
 
-// select ShadowDOM impl
-if (Platform.flags.shadow) {
+// select ShadowDOM impl
+if (Platform.flags.shadow) {
 
 // Copyright 2012 The Polymer Authors. All rights reserved.
 // Use of this source code is goverened by a BSD-style
@@ -7791,6 +7791,7 @@ window.ShadowDOMPolyfill = {};
 
   // Work around for https://bugzilla.mozilla.org/show_bug.cgi?id=943065
   delete window.getComputedStyle;
+  delete window.getDefaultComputedStyle;
   delete window.getSelection;
 
   ['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach(
@@ -11720,353 +11721,353 @@ if (!HTMLImports.useNative) {
  * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
  */
 window.CustomElements = window.CustomElements || {flags:{}};
-/*
- * 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
- */
-
-(function(scope){
-
-var logFlags = window.logFlags || {};
-var IMPORT_LINK_TYPE = window.HTMLImports ? HTMLImports.IMPORT_LINK_TYPE : 'none';
-
-// walk the subtree rooted at node, applying 'find(element, data)' function
-// to each element
-// if 'find' returns true for 'element', do not search element's subtree
-function findAll(node, find, data) {
-  var e = node.firstElementChild;
-  if (!e) {
-    e = node.firstChild;
-    while (e && e.nodeType !== Node.ELEMENT_NODE) {
-      e = e.nextSibling;
-    }
-  }
-  while (e) {
-    if (find(e, data) !== true) {
-      findAll(e, find, data);
-    }
-    e = e.nextElementSibling;
-  }
-  return null;
-}
-
-// walk all shadowRoots on a given node.
-function forRoots(node, cb) {
-  var root = node.shadowRoot;
-  while(root) {
-    forSubtree(root, cb);
-    root = root.olderShadowRoot;
-  }
-}
-
-// walk the subtree rooted at node, including descent into shadow-roots,
-// applying 'cb' to each element
-function forSubtree(node, cb) {
-  //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);
-  findAll(node, function(e) {
-    if (cb(e)) {
-      return true;
-    }
-    forRoots(e, cb);
-  });
-  forRoots(node, cb);
-  //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();
-}
-
-// manage lifecycle on added node
-function added(node) {
-  if (upgrade(node)) {
-    insertedNode(node);
-    return true;
-  }
-  inserted(node);
-}
-
-// manage lifecycle on added node's subtree only
-function addedSubtree(node) {
-  forSubtree(node, function(e) {
-    if (added(e)) {
-      return true;
-    }
-  });
-}
-
-// manage lifecycle on added node and it's subtree
-function addedNode(node) {
-  return added(node) || addedSubtree(node);
-}
-
-// upgrade custom elements at node, if applicable
-function upgrade(node) {
-  if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
-    var type = node.getAttribute('is') || node.localName;
-    var definition = scope.registry[type];
-    if (definition) {
-      logFlags.dom && console.group('upgrade:', node.localName);
-      scope.upgrade(node);
-      logFlags.dom && console.groupEnd();
-      return true;
-    }
-  }
-}
-
-function insertedNode(node) {
-  inserted(node);
-  if (inDocument(node)) {
-    forSubtree(node, function(e) {
-      inserted(e);
-    });
-  }
-}
-
-// TODO(sorvell): on platforms without MutationObserver, mutations may not be
-// reliable and therefore attached/detached are not reliable.
-// To make these callbacks less likely to fail, we defer all inserts and removes
-// to give a chance for elements to be inserted into dom.
-// This ensures attachedCallback fires for elements that are created and
-// immediately added to dom.
-var hasPolyfillMutations = (!window.MutationObserver ||
-    (window.MutationObserver === window.JsMutationObserver));
-scope.hasPolyfillMutations = hasPolyfillMutations;
-
-var isPendingMutations = false;
-var pendingMutations = [];
-function deferMutation(fn) {
-  pendingMutations.push(fn);
-  if (!isPendingMutations) {
-    isPendingMutations = true;
-    var async = (window.Platform && window.Platform.endOfMicrotask) ||
-        setTimeout;
-    async(takeMutations);
-  }
-}
-
-function takeMutations() {
-  isPendingMutations = false;
-  var $p = pendingMutations;
-  for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {
-    p();
-  }
-  pendingMutations = [];
-}
-
-function inserted(element) {
-  if (hasPolyfillMutations) {
-    deferMutation(function() {
-      _inserted(element);
-    });
-  } else {
-    _inserted(element);
-  }
-}
-
-// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this
-function _inserted(element) {
-  // TODO(sjmiles): it's possible we were inserted and removed in the space
-  // of one microtask, in which case we won't be 'inDocument' here
-  // But there are other cases where we are testing for inserted without
-  // specific knowledge of mutations, and must test 'inDocument' to determine
-  // whether to call inserted
-  // If we can factor these cases into separate code paths we can have
-  // better diagnostics.
-  // TODO(sjmiles): when logging, do work on all custom elements so we can
-  // track behavior even when callbacks not defined
-  //console.log('inserted: ', element.localName);
-  if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {
-    logFlags.dom && console.group('inserted:', element.localName);
-    if (inDocument(element)) {
-      element.__inserted = (element.__inserted || 0) + 1;
-      // if we are in a 'removed' state, bluntly adjust to an 'inserted' state
-      if (element.__inserted < 1) {
-        element.__inserted = 1;
-      }
-      // if we are 'over inserted', squelch the callback
-      if (element.__inserted > 1) {
-        logFlags.dom && console.warn('inserted:', element.localName,
-          'insert/remove count:', element.__inserted)
-      } else if (element.attachedCallback) {
-        logFlags.dom && console.log('inserted:', element.localName);
-        element.attachedCallback();
-      }
-    }
-    logFlags.dom && console.groupEnd();
-  }
-}
-
-function removedNode(node) {
-  removed(node);
-  forSubtree(node, function(e) {
-    removed(e);
-  });
-}
-
-function removed(element) {
-  if (hasPolyfillMutations) {
-    deferMutation(function() {
-      _removed(element);
-    });
-  } else {
-    _removed(element);
-  }
-}
-
-function _removed(element) {
-  // TODO(sjmiles): temporary: do work on all custom elements so we can track
-  // behavior even when callbacks not defined
-  if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {
-    logFlags.dom && console.group('removed:', element.localName);
-    if (!inDocument(element)) {
-      element.__inserted = (element.__inserted || 0) - 1;
-      // if we are in a 'inserted' state, bluntly adjust to an 'removed' state
-      if (element.__inserted > 0) {
-        element.__inserted = 0;
-      }
-      // if we are 'over removed', squelch the callback
-      if (element.__inserted < 0) {
-        logFlags.dom && console.warn('removed:', element.localName,
-            'insert/remove count:', element.__inserted)
-      } else if (element.detachedCallback) {
-        element.detachedCallback();
-      }
-    }
-    logFlags.dom && console.groupEnd();
-  }
-}
-
-// SD polyfill intrustion due mainly to the fact that 'document'
-// is not entirely wrapped
-function wrapIfNeeded(node) {
-  return window.ShadowDOMPolyfill ? ShadowDOMPolyfill.wrapIfNeeded(node)
-      : node;
-}
-
-function inDocument(element) {
-  var p = element;
-  var doc = wrapIfNeeded(document);
-  while (p) {
-    if (p == doc) {
-      return true;
-    }
-    p = p.parentNode || p.host;
-  }
-}
-
-function watchShadow(node) {
-  if (node.shadowRoot && !node.shadowRoot.__watched) {
-    logFlags.dom && console.log('watching shadow-root for: ', node.localName);
-    // watch all unwatched roots...
-    var root = node.shadowRoot;
-    while (root) {
-      watchRoot(root);
-      root = root.olderShadowRoot;
-    }
-  }
-}
-
-function watchRoot(root) {
-  if (!root.__watched) {
-    observe(root);
-    root.__watched = true;
-  }
-}
-
-function handler(mutations) {
-  //
-  if (logFlags.dom) {
-    var mx = mutations[0];
-    if (mx && mx.type === 'childList' && mx.addedNodes) {
-        if (mx.addedNodes) {
-          var d = mx.addedNodes[0];
-          while (d && d !== document && !d.host) {
-            d = d.parentNode;
-          }
-          var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';
-          u = u.split('/?').shift().split('/').pop();
-        }
-    }
-    console.group('mutations (%d) [%s]', mutations.length, u || '');
-  }
-  //
-  mutations.forEach(function(mx) {
-    //logFlags.dom && console.group('mutation');
-    if (mx.type === 'childList') {
-      forEach(mx.addedNodes, function(n) {
-        //logFlags.dom && console.log(n.localName);
-        if (!n.localName) {
-          return;
-        }
-        // nodes added may need lifecycle management
-        addedNode(n);
-      });
-      // removed nodes may need lifecycle management
-      forEach(mx.removedNodes, function(n) {
-        //logFlags.dom && console.log(n.localName);
-        if (!n.localName) {
-          return;
-        }
-        removedNode(n);
-      });
-    }
-    //logFlags.dom && console.groupEnd();
-  });
-  logFlags.dom && console.groupEnd();
-};
-
-var observer = new MutationObserver(handler);
-
-function takeRecords() {
-  // TODO(sjmiles): ask Raf why we have to call handler ourselves
-  handler(observer.takeRecords());
-  takeMutations();
-}
-
-var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
-
-function observe(inRoot) {
-  observer.observe(inRoot, {childList: true, subtree: true});
-}
-
-function observeDocument(doc) {
-  observe(doc);
-}
-
-function upgradeDocument(doc) {
-  logFlags.dom && console.group('upgradeDocument: ', (doc.baseURI).split('/').pop());
-  addedNode(doc);
-  logFlags.dom && console.groupEnd();
-}
-
-function upgradeDocumentTree(doc) {
-  doc = wrapIfNeeded(doc);
-  //console.log('upgradeDocumentTree: ', (doc.baseURI).split('/').pop());
-  // upgrade contained imported documents
-  var imports = doc.querySelectorAll('link[rel=' + IMPORT_LINK_TYPE + ']');
-  for (var i=0, l=imports.length, n; (i<l) && (n=imports[i]); i++) {
-    if (n.import && n.import.__parsed) {
-      upgradeDocumentTree(n.import);
-    }
-  }
-  upgradeDocument(doc);
-}
-
-// exports
-scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;
-scope.watchShadow = watchShadow;
-scope.upgradeDocumentTree = upgradeDocumentTree;
-scope.upgradeAll = addedNode;
-scope.upgradeSubtree = addedSubtree;
-scope.insertedNode = insertedNode;
-
-scope.observeDocument = observeDocument;
-scope.upgradeDocument = upgradeDocument;
-
-scope.takeRecords = takeRecords;
-
-})(window.CustomElements);
+/*
+ * 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
+ */
+
+(function(scope){
+
+var logFlags = window.logFlags || {};
+var IMPORT_LINK_TYPE = window.HTMLImports ? HTMLImports.IMPORT_LINK_TYPE : 'none';
+
+// walk the subtree rooted at node, applying 'find(element, data)' function
+// to each element
+// if 'find' returns true for 'element', do not search element's subtree
+function findAll(node, find, data) {
+  var e = node.firstElementChild;
+  if (!e) {
+    e = node.firstChild;
+    while (e && e.nodeType !== Node.ELEMENT_NODE) {
+      e = e.nextSibling;
+    }
+  }
+  while (e) {
+    if (find(e, data) !== true) {
+      findAll(e, find, data);
+    }
+    e = e.nextElementSibling;
+  }
+  return null;
+}
+
+// walk all shadowRoots on a given node.
+function forRoots(node, cb) {
+  var root = node.shadowRoot;
+  while(root) {
+    forSubtree(root, cb);
+    root = root.olderShadowRoot;
+  }
+}
+
+// walk the subtree rooted at node, including descent into shadow-roots,
+// applying 'cb' to each element
+function forSubtree(node, cb) {
+  //logFlags.dom && node.childNodes && node.childNodes.length && console.group('subTree: ', node);
+  findAll(node, function(e) {
+    if (cb(e)) {
+      return true;
+    }
+    forRoots(e, cb);
+  });
+  forRoots(node, cb);
+  //logFlags.dom && node.childNodes && node.childNodes.length && console.groupEnd();
+}
+
+// manage lifecycle on added node
+function added(node) {
+  if (upgrade(node)) {
+    insertedNode(node);
+    return true;
+  }
+  inserted(node);
+}
+
+// manage lifecycle on added node's subtree only
+function addedSubtree(node) {
+  forSubtree(node, function(e) {
+    if (added(e)) {
+      return true;
+    }
+  });
+}
+
+// manage lifecycle on added node and it's subtree
+function addedNode(node) {
+  return added(node) || addedSubtree(node);
+}
+
+// upgrade custom elements at node, if applicable
+function upgrade(node) {
+  if (!node.__upgraded__ && node.nodeType === Node.ELEMENT_NODE) {
+    var type = node.getAttribute('is') || node.localName;
+    var definition = scope.registry[type];
+    if (definition) {
+      logFlags.dom && console.group('upgrade:', node.localName);
+      scope.upgrade(node);
+      logFlags.dom && console.groupEnd();
+      return true;
+    }
+  }
+}
+
+function insertedNode(node) {
+  inserted(node);
+  if (inDocument(node)) {
+    forSubtree(node, function(e) {
+      inserted(e);
+    });
+  }
+}
+
+// TODO(sorvell): on platforms without MutationObserver, mutations may not be
+// reliable and therefore attached/detached are not reliable.
+// To make these callbacks less likely to fail, we defer all inserts and removes
+// to give a chance for elements to be inserted into dom.
+// This ensures attachedCallback fires for elements that are created and
+// immediately added to dom.
+var hasPolyfillMutations = (!window.MutationObserver ||
+    (window.MutationObserver === window.JsMutationObserver));
+scope.hasPolyfillMutations = hasPolyfillMutations;
+
+var isPendingMutations = false;
+var pendingMutations = [];
+function deferMutation(fn) {
+  pendingMutations.push(fn);
+  if (!isPendingMutations) {
+    isPendingMutations = true;
+    var async = (window.Platform && window.Platform.endOfMicrotask) ||
+        setTimeout;
+    async(takeMutations);
+  }
+}
+
+function takeMutations() {
+  isPendingMutations = false;
+  var $p = pendingMutations;
+  for (var i=0, l=$p.length, p; (i<l) && (p=$p[i]); i++) {
+    p();
+  }
+  pendingMutations = [];
+}
+
+function inserted(element) {
+  if (hasPolyfillMutations) {
+    deferMutation(function() {
+      _inserted(element);
+    });
+  } else {
+    _inserted(element);
+  }
+}
+
+// TODO(sjmiles): if there are descents into trees that can never have inDocument(*) true, fix this
+function _inserted(element) {
+  // TODO(sjmiles): it's possible we were inserted and removed in the space
+  // of one microtask, in which case we won't be 'inDocument' here
+  // But there are other cases where we are testing for inserted without
+  // specific knowledge of mutations, and must test 'inDocument' to determine
+  // whether to call inserted
+  // If we can factor these cases into separate code paths we can have
+  // better diagnostics.
+  // TODO(sjmiles): when logging, do work on all custom elements so we can
+  // track behavior even when callbacks not defined
+  //console.log('inserted: ', element.localName);
+  if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {
+    logFlags.dom && console.group('inserted:', element.localName);
+    if (inDocument(element)) {
+      element.__inserted = (element.__inserted || 0) + 1;
+      // if we are in a 'removed' state, bluntly adjust to an 'inserted' state
+      if (element.__inserted < 1) {
+        element.__inserted = 1;
+      }
+      // if we are 'over inserted', squelch the callback
+      if (element.__inserted > 1) {
+        logFlags.dom && console.warn('inserted:', element.localName,
+          'insert/remove count:', element.__inserted)
+      } else if (element.attachedCallback) {
+        logFlags.dom && console.log('inserted:', element.localName);
+        element.attachedCallback();
+      }
+    }
+    logFlags.dom && console.groupEnd();
+  }
+}
+
+function removedNode(node) {
+  removed(node);
+  forSubtree(node, function(e) {
+    removed(e);
+  });
+}
+
+function removed(element) {
+  if (hasPolyfillMutations) {
+    deferMutation(function() {
+      _removed(element);
+    });
+  } else {
+    _removed(element);
+  }
+}
+
+function _removed(element) {
+  // TODO(sjmiles): temporary: do work on all custom elements so we can track
+  // behavior even when callbacks not defined
+  if (element.attachedCallback || element.detachedCallback || (element.__upgraded__ && logFlags.dom)) {
+    logFlags.dom && console.group('removed:', element.localName);
+    if (!inDocument(element)) {
+      element.__inserted = (element.__inserted || 0) - 1;
+      // if we are in a 'inserted' state, bluntly adjust to an 'removed' state
+      if (element.__inserted > 0) {
+        element.__inserted = 0;
+      }
+      // if we are 'over removed', squelch the callback
+      if (element.__inserted < 0) {
+        logFlags.dom && console.warn('removed:', element.localName,
+            'insert/remove count:', element.__inserted)
+      } else if (element.detachedCallback) {
+        element.detachedCallback();
+      }
+    }
+    logFlags.dom && console.groupEnd();
+  }
+}
+
+// SD polyfill intrustion due mainly to the fact that 'document'
+// is not entirely wrapped
+function wrapIfNeeded(node) {
+  return window.ShadowDOMPolyfill ? ShadowDOMPolyfill.wrapIfNeeded(node)
+      : node;
+}
+
+function inDocument(element) {
+  var p = element;
+  var doc = wrapIfNeeded(document);
+  while (p) {
+    if (p == doc) {
+      return true;
+    }
+    p = p.parentNode || p.host;
+  }
+}
+
+function watchShadow(node) {
+  if (node.shadowRoot && !node.shadowRoot.__watched) {
+    logFlags.dom && console.log('watching shadow-root for: ', node.localName);
+    // watch all unwatched roots...
+    var root = node.shadowRoot;
+    while (root) {
+      watchRoot(root);
+      root = root.olderShadowRoot;
+    }
+  }
+}
+
+function watchRoot(root) {
+  if (!root.__watched) {
+    observe(root);
+    root.__watched = true;
+  }
+}
+
+function handler(mutations) {
+  //
+  if (logFlags.dom) {
+    var mx = mutations[0];
+    if (mx && mx.type === 'childList' && mx.addedNodes) {
+        if (mx.addedNodes) {
+          var d = mx.addedNodes[0];
+          while (d && d !== document && !d.host) {
+            d = d.parentNode;
+          }
+          var u = d && (d.URL || d._URL || (d.host && d.host.localName)) || '';
+          u = u.split('/?').shift().split('/').pop();
+        }
+    }
+    console.group('mutations (%d) [%s]', mutations.length, u || '');
+  }
+  //
+  mutations.forEach(function(mx) {
+    //logFlags.dom && console.group('mutation');
+    if (mx.type === 'childList') {
+      forEach(mx.addedNodes, function(n) {
+        //logFlags.dom && console.log(n.localName);
+        if (!n.localName) {
+          return;
+        }
+        // nodes added may need lifecycle management
+        addedNode(n);
+      });
+      // removed nodes may need lifecycle management
+      forEach(mx.removedNodes, function(n) {
+        //logFlags.dom && console.log(n.localName);
+        if (!n.localName) {
+          return;
+        }
+        removedNode(n);
+      });
+    }
+    //logFlags.dom && console.groupEnd();
+  });
+  logFlags.dom && console.groupEnd();
+};
+
+var observer = new MutationObserver(handler);
+
+function takeRecords() {
+  // TODO(sjmiles): ask Raf why we have to call handler ourselves
+  handler(observer.takeRecords());
+  takeMutations();
+}
+
+var forEach = Array.prototype.forEach.call.bind(Array.prototype.forEach);
+
+function observe(inRoot) {
+  observer.observe(inRoot, {childList: true, subtree: true});
+}
+
+function observeDocument(doc) {
+  observe(doc);
+}
+
+function upgradeDocument(doc) {
+  logFlags.dom && console.group('upgradeDocument: ', (doc.baseURI).split('/').pop());
+  addedNode(doc);
+  logFlags.dom && console.groupEnd();
+}
+
+function upgradeDocumentTree(doc) {
+  doc = wrapIfNeeded(doc);
+  //console.log('upgradeDocumentTree: ', (doc.baseURI).split('/').pop());
+  // upgrade contained imported documents
+  var imports = doc.querySelectorAll('link[rel=' + IMPORT_LINK_TYPE + ']');
+  for (var i=0, l=imports.length, n; (i<l) && (n=imports[i]); i++) {
+    if (n.import && n.import.__parsed) {
+      upgradeDocumentTree(n.import);
+    }
+  }
+  upgradeDocument(doc);
+}
+
+// exports
+scope.IMPORT_LINK_TYPE = IMPORT_LINK_TYPE;
+scope.watchShadow = watchShadow;
+scope.upgradeDocumentTree = upgradeDocumentTree;
+scope.upgradeAll = addedNode;
+scope.upgradeSubtree = addedSubtree;
+scope.insertedNode = insertedNode;
+
+scope.observeDocument = observeDocument;
+scope.upgradeDocument = upgradeDocument;
+
+scope.takeRecords = takeRecords;
+
+})(window.CustomElements);
 
 /*
  * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
@@ -14596,4 +14597,4 @@ scope.flush = flush;
 })(window.Platform);
 
 
-//# sourceMappingURL=platform.concat.js.map
+//# sourceMappingURL=platform.concat.js.map