Fix use-after-free in Android Origin Info Bubble

chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java

Index: chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java b/chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java
index e1d39ceac5077d954e60f02715d9aa8ab94b0e2d..99412beed593f0da9a018a8eaa933cc5e3e35ac1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/pageinfo/WebsiteSettingsPopup.java
@@ -229,7 +229,7 @@ public class WebsiteSettingsPopup implements OnClickListener {
     private final WindowAndroid mWindowAndroid;
 
     // A pointer to the C++ object for this UI.
-    private final long mNativeWebsiteSettingsPopup;
+    private long mNativeWebsiteSettingsPopup;
 
     // The outer container, filled with the layout from website_settings.xml.
     private final LinearLayout mContainer;
@@ -397,6 +397,7 @@ public class WebsiteSettingsPopup implements OnClickListener {
                 assert mNativeWebsiteSettingsPopup != 0;
                 webContentsObserver.destroy();
                 nativeDestroy(mNativeWebsiteSettingsPopup);
+                mNativeWebsiteSettingsPopup = 0;
             }
         });
 
@@ -875,7 +876,9 @@ public class WebsiteSettingsPopup implements OnClickListener {
     }
 
     private void recordAction(int action) {
-        nativeRecordWebsiteSettingsAction(mNativeWebsiteSettingsPopup, action);
+        if (mNativeWebsiteSettingsPopup != 0) {
+            nativeRecordWebsiteSettingsAction(mNativeWebsiteSettingsPopup, action);
+        }
     }
 
     /**