Updating the samples page to reflect the examples that have been retired.

src/site/samples/searchable_list/example/packages/web_components/dart_support.js

Index: src/site/samples/searchable_list/example/packages/web_components/dart_support.js
diff --git a/src/site/samples/searchable_list/example/packages/web_components/dart_support.js b/src/site/samples/searchable_list/example/packages/web_components/dart_support.js
deleted file mode 100644
index 7ce882cef9a107d18d5fc8ec23de4d7df69673d8..0000000000000000000000000000000000000000
--- a/src/site/samples/searchable_list/example/packages/web_components/dart_support.js
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Teaches dart2js about the wrapping that is done by the Shadow DOM polyfill.
-(function() {
-  var ShadowDOMPolyfill = window.ShadowDOMPolyfill;
-  if (!ShadowDOMPolyfill) return;
-
-  // TODO(sigmund): remove the userAgent check once 1.6 rolls as stable.
-  // See: dartbug.com/18463
-  if (navigator.dartEnabled || (navigator.userAgent.indexOf('(Dart)') !== -1)) {
-    console.error("ShadowDOMPolyfill polyfill was loaded in Dartium. This " +
-        "will not work. This indicates that Dartium's Chrome version is " +
-        "not compatible with this version of web_components.");
-  }
-
-  var needsConstructorFix = window.constructor === window.Window;
-
-  // TODO(jmesserly): we need to wrap document somehow (a dart:html hook?)
-
-  // dartNativeDispatchHooksTransformer is described on initHooks() in
-  // sdk/lib/_internal/lib/native_helper.dart.
-  if (typeof window.dartNativeDispatchHooksTransformer == 'undefined')
-    window.dartNativeDispatchHooksTransformer = [];
-
-  window.dartNativeDispatchHooksTransformer.push(function(hooks) {
-    var NodeList = ShadowDOMPolyfill.wrappers.NodeList;
-    var ShadowRoot = ShadowDOMPolyfill.wrappers.ShadowRoot;
-    var unwrapIfNeeded = ShadowDOMPolyfill.unwrapIfNeeded;
-    var originalGetTag = hooks.getTag;
-    hooks.getTag = function getTag(obj) {
-      // TODO(jmesserly): do we still need these?
-      if (obj instanceof NodeList) return 'NodeList';
-      if (obj instanceof ShadowRoot) return 'ShadowRoot';
-      if (MutationRecord && (obj instanceof MutationRecord))
-          return 'MutationRecord';
-      if (MutationObserver && (obj instanceof MutationObserver))
-          return 'MutationObserver';
-
-      // TODO(jmesserly): this prevents incorrect interaction between ShadowDOM
-      // and dart:html's <template> polyfill. Essentially, ShadowDOM is
-      // polyfilling native template, but our Dart polyfill fails to detect this
-      // because the unwrapped node is an HTMLUnknownElement, leading it to
-      // think the node has no content.
-      if (obj instanceof HTMLTemplateElement) return 'HTMLTemplateElement';
-
-      var unwrapped = unwrapIfNeeded(obj);
-      if (unwrapped && (needsConstructorFix || obj !== unwrapped)) {
-        // Fix up class names for Firefox, or if using the minified polyfill.
-        // dart2js prefers .constructor.name, but there are all kinds of cases
-        // where this will give the wrong answer.
-        var ctor = obj.constructor
-        if (ctor === unwrapped.constructor) {
-          var name = ctor._ShadowDOMPolyfill$cacheTag_;
-          if (!name) {
-            name = originalGetTag(unwrapped);
-            ctor._ShadowDOMPolyfill$cacheTag_ = name;
-          }
-          return name;
-        }
-
-        obj = unwrapped;
-      }
-      return originalGetTag(obj);
-    }
-  });
-})();
-
-// Updates document.registerElement so Dart can see when Javascript custom
-// elements are created, and wrap them to provide a Dart friendly API.
-(function (doc) {
-  var upgraders = {};       // upgrader associated with a custom-tag.
-  var unpatchableTags = {}; // set of custom-tags that can't be patched.
-  var pendingElements = {}; // will upgrade when/if an upgrader is installed.
-  var upgradeOldElements = true;
-
-  var originalRegisterElement = doc.registerElement;
-  if (!originalRegisterElement) {
-    throw new Error('document.registerElement is not present.');
-  }
-
-  function reportError(name) {
-    console.error("Couldn't patch prototype to notify Dart when " + name +
-        " elements are created. This can be fixed by making the " +
-        "createdCallback in " + name + " a configurable property.");
-  }
-
-  function registerElement(name, options) {
-    var proto, extendsOption;
-    if (options !== undefined) {
-      proto = options.prototype;
-    } else {
-      proto = Object.create(HTMLElement.prototype);
-      options = {protoptype: proto};
-    }
-
-    var original = proto.createdCallback;
-    var newCallback = function() {
-      original.call(this);
-      var name = (this.getAttribute('is') || this.localName).toLowerCase();
-      var upgrader = upgraders[name];
-      if (upgrader) {
-        upgrader(this);
-      } else if (upgradeOldElements) {
-        // Save this element in case we can upgrade it later when an upgrader is
-        // registered.
-        var list = pendingElements[name];
-        if (!list) {
-          list = pendingElements[name] = [];
-        }
-        list.push(this);
-      }
-    };
-
-    var descriptor = Object.getOwnPropertyDescriptor(proto, 'createdCallback');
-    if (!descriptor || descriptor.writable) {
-      proto.createdCallback = newCallback;
-    } else if (descriptor.configurable) {
-      descriptor['value'] = newCallback;
-      Object.defineProperty(proto, 'createdCallback', descriptor);
-    } else {
-      unpatchableTags[name] = true;
-      if (upgraders[name]) reportError(name);
-    }
-    return originalRegisterElement.call(this, name, options);
-  }
-
-  function registerDartTypeUpgrader(name, upgrader) {
-    if (!upgrader) return;
-    name = name.toLowerCase();
-    var existing = upgraders[name];
-    if (existing) {
-      console.error('Already have a Dart type associated with ' + name);
-      return;
-    }
-    upgraders[name] = upgrader;
-    if (unpatchableTags[name]) reportError(name);
-    if (upgradeOldElements) {
-      // Upgrade elements that were created before the upgrader was registered.
-      var list = pendingElements[name];
-      if (list) {
-        for (var i = 0; i < list.length; i++) {
-          upgrader(list[i]);
-        }
-      }
-      delete pendingElements[name];
-    } else {
-      console.warn("Didn't expect more Dart types to be registered. '" + name
-          + "' elements that already exist in the page might not be wrapped.");
-    }
-  }
-
-  function onlyUpgradeNewElements() {
-    upgradeOldElements = false;
-    pendingElements = null;
-  }
-
-  // Native custom elements outside the app in Chrome have constructor
-  // names like "x-tag", which need to be translated to the DOM
-  // element they extend.  When using the shadow dom polyfill this is
-  // take care of above.
-  var ShadowDOMPolyfill = window.ShadowDOMPolyfill;
-  if (!ShadowDOMPolyfill) {
-    // dartNativeDispatchHooksTransformer is described on initHooks() in
-    // sdk/lib/_internal/lib/native_helper.dart.
-    if (typeof window.dartNativeDispatchHooksTransformer == 'undefined')
-    window.dartNativeDispatchHooksTransformer = [];
-
-    window.dartNativeDispatchHooksTransformer.push(function(hooks) {
-      var originalGetUnknownTag = hooks.getUnknownTag;
-      hooks.getUnknownTag = function(o, tag) {
-        if (/-/.test(tag)) {  // "x-tag"
-          var s = Object.prototype.toString.call(o);
-          var match = s.match(/^\[object ([A-Za-z]*Element)\]$/);
-          if (match) {
-            return match[1];
-	  }
-          return originalGetUnknownTag(o, tag);
-        }
-      };
-    });
-  }
-
-  doc._registerDartTypeUpgrader = registerDartTypeUpgrader;
-  doc._onlyUpgradeNewElements = onlyUpgradeNewElements;
-  doc.registerElement = registerElement;
-})(document);