Fix all remaining print preview closure compiler errors

chrome/test/data/webui/print_preview.js

Index: chrome/test/data/webui/print_preview.js
diff --git a/chrome/test/data/webui/print_preview.js b/chrome/test/data/webui/print_preview.js
index d01c54386aa7e1136bc30143b09c7c7f751aa252..db322ac1d6ee48f24edb38c53a85d61b4c57b32b 100644
--- a/chrome/test/data/webui/print_preview.js
+++ b/chrome/test/data/webui/print_preview.js
@@ -119,6 +119,7 @@ PrintPreviewWebUITest.prototype = {
           function() {
         return false;
       };
+

[dpapad, 2017/05/09 01:18:07]

Nit: Maybe revert changes in this file for now?

[rbpotter, 2017/05/09 01:36:36]

Done.

     }.bind(this));
   },
 
@@ -626,7 +627,6 @@ TEST_F('PrintPreviewWebUITest', 'SourceIsHTMLCapabilities', function() {
     checkElementDisplayed(rasterize, false);
   checkSectionVisible(mediaSize, false);
   checkSectionVisible(scalingSettings, false);
-
   this.expandMoreSettings();
 
   checkElementDisplayed(fitToPage, false);
@@ -634,7 +634,6 @@ TEST_F('PrintPreviewWebUITest', 'SourceIsHTMLCapabilities', function() {
     checkElementDisplayed(rasterize, false);
   checkSectionVisible(mediaSize, true);
   checkSectionVisible(scalingSettings, true);
-
   this.waitForAnimationToEnd('more-settings');
 });