PDF: Delete non-material viewer

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({
-  is: 'viewer-progress-bar',
-
-  properties: {
-    progress: {
-      type: Number,
-      observer: 'progressChanged'
-    },
-
-    text: {
-      type: String,
-      value: 'Loading'
-    },
-
-    numSegments: {
-      type: Number,
-      value: 8,
-      observer: 'numSegmentsChanged'
-    }
-  },
-
-  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 ? 'inherit' : '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();
-  }
-});