Fix NPE when checking for title of Bookmarks
and getting BrowserPreferences

Change-Id: I28bd80be7ffbbf268f085d9944c67c4016452a79
diff --git a/src/com/android/browser/BrowserPreferencesPage.java b/src/com/android/browser/BrowserPreferencesPage.java
index 3cbeb1a..848c23d 100644
--- a/src/com/android/browser/BrowserPreferencesPage.java
+++ b/src/com/android/browser/BrowserPreferencesPage.java
@@ -67,6 +67,9 @@
             }
 
             Bundle extras = intent.getExtras();
+            if (extras == null)
+                return;
+
             String fragment = (String) extras.getCharSequence(PreferenceActivity.EXTRA_SHOW_FRAGMENT);
             if (fragment != null) {
                 try {