Mac: Make clang compile unit_tests.

chrome/browser/cocoa/bookmark_bar_folder_controller_unittest.mm

 // Copyright (c) 2010 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/basictypes.h"
 #include "base/scoped_nsobject.h"
 #import "chrome/browser/cocoa/bookmark_bar_constants.h"  // namespace bookmarks
 #import "chrome/browser/cocoa/bookmark_bar_controller.h"
@@ skipping 103 matching lines @@
 - (void)childFolderWillClose:(id<BookmarkButtonControllerProtocol>)child {
   [childFolderDelegate_ childFolderWillClose:child];
 }
 
 @end
 
 
 class BookmarkBarFolderControllerTest : public CocoaTest {
  public:
   BrowserTestHelper helper_;
-  scoped_nsobject<BookmarkBarController> bar_;
+  scoped_nsobject<BookmarkBarControllerChildFolderRedirect> bar_;
   const BookmarkNode* folderA_;  // owned by model
   const BookmarkNode* longTitleNode_;  // owned by model
 
   BookmarkBarFolderControllerTest() {
     BookmarkModel* model = helper_.profile()->GetBookmarkModel();
     const BookmarkNode* parent = model->GetBookmarkBarNode();
     const BookmarkNode* folderA = model->AddGroup(parent,
                                                   parent->GetChildCount(),
                                                   L"group");
     folderA_ = folderA;
@@ skipping 1310 matching lines @@
   [folder deleteBookmark:folder];
   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:.