FBTF: Forward declare everything possible in testing_profile.h

chrome/browser/cocoa/bookmark_button_cell_unittest.mm

 // Copyright (c) 2009 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 "app/resource_bundle.h"
 #include "base/scoped_nsobject.h"
+#include "chrome/browser/bookmarks/bookmark_model.h"
 #import "chrome/browser/cocoa/bookmark_button_cell.h"
 #import "chrome/browser/cocoa/bookmark_menu.h"
 #include "chrome/browser/cocoa/browser_test_helper.h"
 #import "chrome/browser/cocoa/cocoa_test_helper.h"
 #include "grit/app_resources.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 // Simple class to remember how many mouseEntered: and mouseExited:
 // calls it gets.  Only used by BookmarkMouseForwarding but placed
@@ skipping 154 matching lines @@
   EXPECT_GE(size.width, 2);
   EXPECT_GE(size.height, 2);
 
   // Once we turn on arrow drawing make sure there is now room for it.
   [cell setDrawFolderArrow:YES];
   NSSize arrowSize = [cell cellSize];
   EXPECT_GT(arrowSize.width, size.width);
 }
 
 }  // namespace