Hookup the page-indicator and progress-bar elements in the PDF extension.

chrome/browser/resources/pdf/viewport.js

 // Copyright 2013 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.
 
 /**
  * Predefined zoom factors to be used when zooming in/out. These are in
  * ascending order.
  */
 var ZOOM_FACTORS = [0.25, 0.333, 0.5, 0.666, 0.75, 0.9, 1,
                     1.1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 5];
@@ skipping 111 matching lines @@
     this.window_.scrollTo(
         currentScrollPos[0] * newZoom - this.window_.innerWidth / 2,
         currentScrollPos[1] * newZoom - this.window_.innerHeight / 2);
   },
 
   /**
    * @private
    * Called when the viewport should be updated.
    */
   updateViewport_: function() {
-    // Shift the toolbar so that it doesn't move when the scrollbars display
     var needsScrollbars = this.documentHasScrollbars();
+    var page = this.getMostVisiblePage();
     this.viewportChangedCallback_(this.zoom_,
                                   this.window_.pageXOffset,
                                   this.window_.pageYOffset,
                                   this.scrollbarWidth_,
-                                  needsScrollbars);
+                                  needsScrollbars,
+                                  page);
   },
 
   /**
    * @private
    * Returns a rect representing the current viewport.
    * @return {Object} a rect representing the current viewport.
    */
   getCurrentViewportRect_: function() {
     return {
       x: this.window_.pageXOffset / this.zoom_,
@@ skipping 149 matching lines @@
    * Set the dimensions of the document.
    * @param {Object} documentDimensions the dimensions of the document
    */
   setDocumentDimensions: function(documentDimensions) {
     this.documentDimensions_ = documentDimensions;
     this.pageDimensions_ = this.documentDimensions_.pageDimensions;
     this.contentSizeChanged_();
     this.updateViewport_();
   }
 };