Add some extra height to bookmark bar if the font wants to be larger

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller_unittest.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <cmath>
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_constants.h"
@@ skipping 161 matching lines @@
                   GURL("http://www.google.com/c"));
 
     bar_.reset([[BookmarkBarControllerChildFolderRedirect alloc]
         initWithBrowser:browser()
            initialWidth:300
                delegate:nil]);
     [bar_ loaded:model];
     // Make parent frame for bookmark bar then open it.
     NSRect frame = [[test_window() contentView] frame];
     frame = NSMakeRect(frame.origin.x,
-                       frame.size.height - chrome::kNTPBookmarkBarHeight,
-                       frame.size.width, chrome::kNTPBookmarkBarHeight);
+                       frame.size.height - chrome::kNTPMinimumBookmarkBarHeight,
+                       frame.size.width, chrome::kNTPMinimumBookmarkBarHeight);
     NSView* fakeToolbarView = [[[NSView alloc] initWithFrame:frame]
                                 autorelease];
     [[test_window() contentView] addSubview:fakeToolbarView];
     [fakeToolbarView addSubview:[bar_ view]];
     [bar_ setBookmarkBarEnabled:YES];
   }
 
   // Remove the bookmark with the long title.
   void RemoveLongTitleNode() {
     BookmarkModel* model =
@@ skipping 1475 matching lines @@
   DeleteBookmark([folder parentButton], profile());
   EXPECT_FALSE([folder folderController]);
 }
 
 // TODO(jrg): draggingEntered: and draggingExited: trigger timers so
 // they are hard to test.  Factor out "fire timers" into routines
 // which can be overridden to fire immediately to make behavior
 // confirmable.
 // There is a similar problem with mouseEnteredButton: and
 // mouseExitedButton:.