Print Preview: Get rid of the loading div on failure.

chrome/browser/resources/print_preview.js

Index: chrome/browser/resources/print_preview.js
===================================================================
--- chrome/browser/resources/print_preview.js	(revision 82758)
+++ chrome/browser/resources/print_preview.js	(working copy)
@@ -307,6 +307,7 @@
  * Asks the browser to generate a preview PDF based on current print settings.
  */
 function requestPrintPreview() {
+  $('dancing-dots').classList.remove('hidden');
   $('dancing-dots').classList.remove('invisible');
   chrome.send('getPreview', [getSettingsJSON()]);
 }
@@ -360,6 +361,7 @@
  * Called from PrintPreviewMessageHandler::OnPrintPreviewFailed().
  */
 function printPreviewFailed() {
+  $('dancing-dots').classList.add('hidden');
   $('preview-failed').classList.remove('hidden');
 
   var pdfViewer = $('pdf-viewer');
@@ -441,6 +443,7 @@
   if (!pdfPlugin.onload) {
     hasCompatiblePDFPlugin = false;
     mainView.removeChild(pdfPlugin);
+    $('dancing-dots').classList.add('hidden');
     $('no-plugin').classList.remove('hidden');
     return;
   }