Fix printing distilled pages

components/dom_distiller/core/javascript/dom_distiller_viewer.js

Index: components/dom_distiller/core/javascript/dom_distiller_viewer.js
diff --git a/components/dom_distiller/core/javascript/dom_distiller_viewer.js b/components/dom_distiller/core/javascript/dom_distiller_viewer.js
index 915134af6ffcda692b5b184ea5c544543f18a1ea..590a711d07cd5faf042cdee40949198b7915e018 100644
--- a/components/dom_distiller/core/javascript/dom_distiller_viewer.js
+++ b/components/dom_distiller/core/javascript/dom_distiller_viewer.js
@@ -137,18 +137,7 @@ function showFeedbackForm(questionText, yesText, noText) {
   document.getElementById('feedbackNo').innerText = noText;
   document.getElementById('feedbackQuestion').innerText = questionText;
 
-  document.getElementById('contentWrap').style.paddingBottom = '120px';
-  document.getElementById('feedbackContainer').style.display = 'block';
-  var mediaQuery = window.matchMedia("print");
-  mediaQuery.addListener(function (query) {
-    if (query.matches) {
-      document.getElementById('contentWrap').style.paddingBottom = '0px';
-      document.getElementById('feedbackContainer').style.display = 'none';
-    } else {
-      document.getElementById('contentWrap').style.paddingBottom = '120px';
-      document.getElementById('feedbackContainer').style.display = 'block';
-    }
-  });
+  document.getElementById('feedbackContainer').classList.remove("hidden");
 }
 
 /**
@@ -187,11 +176,16 @@ document.getElementById('feedbackNo').addEventListener('click', function(e) {
 
 document.getElementById('feedbackContainer').addEventListener('animationend',
     function(e) {
-      document.getElementById('feedbackContainer').style.display = 'none';
-      // Close the gap where the feedback form was.
-      var contentWrap = document.getElementById('contentWrap');
-      contentWrap.style.transition = '0.5s';
-      contentWrap.style.paddingBottom = '0px';
+      var feedbackContainer = document.getElementById('feedbackContainer');
+      feedbackContainer.classList.remove("fadeOut");
+      feedbackContainer.className += " hidden";
+      document.getElementById('contentWrap').style.paddingBottom = '120px';
+      setTimeout(function() {
+        // Close the gap where the feedback form was.
+        var contentWrap = document.getElementById('contentWrap');
+        contentWrap.style.transition = '0.5s';
+        contentWrap.style.paddingBottom = '';
+      }, 0);
     }, true);
 
 document.getElementById('contentWrap').addEventListener('transitionend',