Merge html-office-public repo into src

chrome/browser/resources/pdf/elements/viewer-progress-bar/viewer-progress-bar.js

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+Polymer('viewer-progress-bar', {
+  progress: 0,
+  text: 'Loading',
+  numSegments: 8,
+  segments: [],
+  ready: function() {
+    this.numSegmentsChanged();
+  },
+  progressChanged: function() {
+    var numVisible = this.progress * this.segments.length / 100.0;
+    for (var i = 0; i < this.segments.length; i++) {
+      this.segments[i].style.visibility =
+          i < numVisible ? 'visible' : 'hidden';
+    }
+
+    if (this.progress >= 100 || this.progress < 0)
+      this.style.opacity = 0;
+  },
+  numSegmentsChanged: function() {
+    // Clear the existing segments.
+    this.segments = [];
+    var segmentsElement = this.$.segments;
+    segmentsElement.innerHTML = '';
+
+    // Create the new segments.
+    var segment = document.createElement('li');
+    segment.classList.add('segment');
+    var angle = 360 / this.numSegments;
+    for (var i = 0; i < this.numSegments; ++i) {
+      var segmentCopy = segment.cloneNode(true);
+      segmentCopy.style.webkitTransform =
+          'rotate(' + (i * angle) + 'deg) skewY(' +
+          -1 * (90 - angle) + 'deg)';
+      segmentsElement.appendChild(segmentCopy);
+      this.segments.push(segmentCopy);
+    }
+    this.progressChanged();
+  }
+});