Cleanup history perf + UI

 Bug: 5283880

Change-Id: Id2868335d308b8dabf79fe33e177a2d0babd66d9
diff --git a/src/com/android/browser/BrowserBookmarksPage.java b/src/com/android/browser/BrowserBookmarksPage.java
index e2447e8..27f6ef8 100644
--- a/src/com/android/browser/BrowserBookmarksPage.java
+++ b/src/com/android/browser/BrowserBookmarksPage.java
@@ -274,6 +274,7 @@
             }
         }
         BookmarkItem header = new BookmarkItem(activity);
+        header.setEnableScrolling(true);
         populateBookmarkItem(cursor, header, isFolder);
         menu.setHeaderView(header);