Revert "Build Observatory with runtime"

runtime/bin/vmservice/observatory/deployed/web/packages/template_binding/js/flush.js

+/*
+ * 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) {
+
+/**
+ * @class Polymer
+ */
+
+// imports
+var endOfMicrotask = scope.endOfMicrotask;
+
+// logging
+var log = window.WebComponents ? WebComponents.flags.log : {};
+
+// inject style sheet
+var style = document.createElement('style');
+style.textContent = 'template {display: none !important;} /* injected by platform.js */';
+var head = document.querySelector('head');
+head.insertBefore(style, head.firstChild);
+
+
+/**
+ * Force any pending data changes to be observed before 
+ * the next task. Data changes are processed asynchronously but are guaranteed
+ * to be processed, for example, before paintin. This method should rarely be 
+ * needed. It does nothing when Object.observe is available; 
+ * when Object.observe is not available, Polymer automatically flushes data 
+ * changes approximately every 1/10 second. 
+ * Therefore, `flush` should only be used when a data mutation should be 
+ * observed sooner than this.
+ * 
+ * @method flush
+ */
+// flush (with logging)
+var flushing;
+function flush() {
+  if (!flushing) {
+    flushing = true;
+    endOfMicrotask(function() {
+      flushing = false;
+      log.data && console.group('flush');
+      Platform.performMicrotaskCheckpoint();
+      log.data && console.groupEnd();
+    });
+  }
+};
+
+// polling dirty checker
+// flush periodically if platform does not have object observe.
+if (!Observer.hasObjectObserve) {
+  var FLUSH_POLL_INTERVAL = 125;
+  window.addEventListener('WebComponentsReady', function() {
+    flush();
+    // watch document visiblity to toggle dirty-checking
+    var visibilityHandler = function() {
+      // only flush if the page is visibile
+      if (document.visibilityState === 'hidden') {
+        if (scope.flushPoll) {
+          clearInterval(scope.flushPoll);
+        }
+      } else {
+        scope.flushPoll = setInterval(flush, FLUSH_POLL_INTERVAL);
+      }
+    };
+    if (typeof document.visibilityState === 'string') {
+      document.addEventListener('visibilitychange', visibilityHandler);
+    }
+    visibilityHandler();
+  });
+} else {
+  // make flush a no-op when we have Object.observe
+  flush = function() {};
+}
+
+if (window.CustomElements && !CustomElements.useNative) {
+  var originalImportNode = Document.prototype.importNode;
+  Document.prototype.importNode = function(node, deep) {
+    var imported = originalImportNode.call(this, node, deep);
+    CustomElements.upgradeAll(imported);
+    return imported;
+  };
+}
+
+// exports
+scope.flush = flush;
+// bc
+Platform.flush = flush;
+
+})(window.Polymer);
+