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

chrome/browser/resources/pdf/viewport.js

Index: chrome/browser/resources/pdf/viewport.js
diff --git a/chrome/browser/resources/pdf/viewport.js b/chrome/browser/resources/pdf/viewport.js
index db9105bfeac0c39e407a6d7f64f49d6fb0c6cdaa..452375329240150e9e8f86b7b93cf7c9956e355f 100644
--- a/chrome/browser/resources/pdf/viewport.js
+++ b/chrome/browser/resources/pdf/viewport.js
@@ -129,13 +129,14 @@ Viewport.prototype = {
    * 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);
   },
 
   /**