gello: cleanup resources

fix npe on tablets too

Change-Id: I1ea17887672813b2de72a05f63c6c4f695605459
Signed-off-by: jrizzoli <joey@cyanogenmoditalia.it>
diff --git a/res/layout-sw600dp/snapshot_item.xml b/res/layout-sw600dp/snapshot_item.xml
index c3ce866..7fc1782 100644
--- a/res/layout-sw600dp/snapshot_item.xml
+++ b/res/layout-sw600dp/snapshot_item.xml
@@ -21,12 +21,12 @@
     android:padding="@dimen/combo_snapshot_item_padding">
     <ImageView
         android:id="@+id/thumb"
-        android:src="@drawable/thumbnail_bookmarks_widget_no_bookmark_holo"
+        android:src="@color/white"
         android:layout_width="@dimen/bookmarkThumbnailWidth"
         android:layout_height="@dimen/bookmarkThumbnailHeight"
         android:scaleType="centerCrop"
         android:cropToPadding="true"
-        android:background="@drawable/border_thumb_bookmarks_widget_holo" />
+        android:background="@color/white" />
     <TextView
         android:id="@+id/date"
         android:layout_width="wrap_content"
@@ -34,7 +34,6 @@
         android:layout_alignBottom="@id/thumb"
         android:layout_alignStart="@id/thumb"
         android:layout_alignEnd="@id/thumb"
-        android:background="@drawable/overlay_url_bookmark_widget_holo"
         android:singleLine="true"
         android:ellipsize="end"
         android:textSize="14sp"