Cleanup history perf + UI

 Bug: 5283880

Change-Id: Id2868335d308b8dabf79fe33e177a2d0babd66d9
diff --git a/src/com/android/browser/BrowserSnapshotPage.java b/src/com/android/browser/BrowserSnapshotPage.java
index 72aa1b9..22c2cb2 100644
--- a/src/com/android/browser/BrowserSnapshotPage.java
+++ b/src/com/android/browser/BrowserSnapshotPage.java
@@ -148,6 +148,7 @@
         inflater.inflate(R.menu.snapshots_context, menu);
         // Create the header, re-use BookmarkItem (has the layout we want)
         BookmarkItem header = new BookmarkItem(getActivity());
+        header.setEnableScrolling(true);
         AdapterContextMenuInfo info = (AdapterContextMenuInfo) menuInfo;
         populateBookmarkItem(mAdapter.getItem(info.position), header);
         menu.setHeaderView(header);