Changes BookmarkBarView to only create buttons as needed

chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h

Index: chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h
diff --git a/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h b/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h
index ea24bbbcfb999766bc4eaec265889cab06d51b92..5df0c94f5ce66018593b2748fda97c5b57eb8ab8 100644
--- a/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h
+++ b/chrome/browser/ui/views/bookmarks/bookmark_bar_view_test_helper.h
@@ -15,8 +15,14 @@ class BookmarkBarViewTestHelper {
 
   int GetBookmarkButtonCount() { return bbv_->GetBookmarkButtonCount(); }
 
+  views::LabelButton* GetBookmarkButton(int index) {
+    return bbv_->GetBookmarkButton(index);
+  }
+
   views::LabelButton* apps_page_shortcut() { return bbv_->apps_page_shortcut_; }
 
+  views::MenuButton* overflow_button() { return bbv_->overflow_button_; }
+
  private:
   BookmarkBarView* bbv_;