Fix license headers in a number of files

chrome/browser/bookmarks/bookmark_model_test_utils.h

-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
+// 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.
 
 #ifndef CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_TEST_UTILS_H_
 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_TEST_UTILS_H_
 
 class BookmarkModel;
 class BookmarkNode;
 
 // Contains utilities for bookmark model related tests.
 class BookmarkModelTestUtils {
  public:
   // Verifies that the two given bookmark models are the same.
   // The IDs of the bookmark nodes are compared only if check_ids is true.
   static void AssertModelsEqual(BookmarkModel* expected,
                                 BookmarkModel* actual,
                                 bool check_ids);
  private:
   // Helper to verify the two given bookmark nodes.
   // The IDs of the bookmark nodes are compared only if check_ids is true.
   static void AssertNodesEqual(const BookmarkNode* expected,
                                const BookmarkNode* actual,
                                bool check_ids);
 };
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_MODEL_TEST_UTILS_H_