Remove obviously unneeded forward declarations in chrome/browser/[abef]*/*.h.

chrome/browser/extensions/extension_bookmark_helpers.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_bookmark_helpers.h"
 
 #include "base/string_number_conversions.h"
+#include "base/values.h"
+#include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/extensions/extension_bookmarks_module_constants.h"
 
 namespace keys = extension_bookmarks_module_constants;
 
 // Helper functions.
 namespace extension_bookmark_helpers {
 
 DictionaryValue* GetNodeDictionary(const BookmarkNode* node,
                                    bool recurse,
                                    bool only_folders) {
@@ skipping 80 matching lines @@
     return false;
   }
 
   const BookmarkNode* parent = node->GetParent();
   int index = parent->IndexOfChild(node);
   model->Remove(parent, index);
   return true;
 }
 
 }