VR Shell does not redirect to another app while in VR mode.

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index 14643a020102c7ba91e4e154c8eef21ba29e027f..435134699a545f69ab6f6b05ebc4994ba91777ac 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -2821,6 +2821,15 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
     }
 
     /**
+     * Sets the TabRedirectHandler for the tab.
+     *
+     * @param tabRedirectHandler the TabRedirectHandler
+     */
+    public void setTabRedirectHandler(TabRedirectHandler tabRedirectHandler) {
+        mTabRedirectHandler = tabRedirectHandler;
+    }
+
+    /**
      * @return the AppBannerManager.
      */
     public AppBannerManager getAppBannerManager() {