Fix NPE when adding a new bookmark.

Bug: 2148968

Change-Id: I03025c3845e536d8aba0c1a8f2c6537333422a48
diff --git a/src/com/android/browser/AddBookmarkPage.java b/src/com/android/browser/AddBookmarkPage.java
index 7878762..71bf481 100644
--- a/src/com/android/browser/AddBookmarkPage.java
+++ b/src/com/android/browser/AddBookmarkPage.java
@@ -161,7 +161,7 @@
 
                 // Only use mThumbnail if url and mOriginalUrl are matches.
                 // Otherwise the user edited the url and the thumbnail no longer applies.
-                if (mOriginalUrl.equals(url)) {
+                if (url.equals(mOriginalUrl)) {
                     Bookmarks.addBookmark(null, cr, url, title, mThumbnail, true);
                 } else {
                     Bookmarks.addBookmark(null, cr, url, title, null, true);