Update delegate held by UI utils

chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java

Index: chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java b/chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java
index 409f68276f6d60291afc4927c2cd6cac749b804f..fc965148bebe8b4212c075b2739123ef2003c2e2 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/dom_distiller/DomDistillerUIUtils.java
@@ -106,7 +106,6 @@ public final class DomDistillerUIUtils {
      * Clear static references to objects.
      */
     public static void destroy() {
-        sFeedbackReporter = null;

[wychen, 2015/12/03 00:58:27]

This deletion seems unrelated.

[mdjones, 2015/12/03 01:04:40]

It's only a little bit related, but I did notice it while making this change.
This reference will be incorrectly cleared each time a tab is closed in document
mode, forcing it to be recreated unnecessarily. I can move this to a separate CL
if you prefer.

[wychen, 2015/12/03 01:18:06]

I see. Then just keep it as is.

         sManagerDelegate = null;
     }