Use a new resource for pages that do not have a screenshot in bookmarks.

Change-Id: Iff64adbd0549be5c182dd38a18c5fbeb5e88a1e8
diff --git a/src/com/android/browser/BrowserBookmarksAdapter.java b/src/com/android/browser/BrowserBookmarksAdapter.java
index bf74ba2..5fb67d0 100644
--- a/src/com/android/browser/BrowserBookmarksAdapter.java
+++ b/src/com/android/browser/BrowserBookmarksAdapter.java
@@ -432,8 +432,7 @@
             byte[] data = mCursor.getBlob(
                     Browser.HISTORY_PROJECTION_THUMBNAIL_INDEX);
             if (data == null) {
-                // Backup is to just show white
-                thumb.setImageResource(R.drawable.blank);
+                thumb.setImageResource(R.drawable.ic_launcher_shortcut_browser_bookmark);
             } else {
                 thumb.setImageBitmap(
                         BitmapFactory.decodeByteArray(data, 0, data.length));