components: Cleanup class/struct fwd declarations

components/update_client/utils.h

 // Copyright 2014 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 COMPONENTS_UPDATE_CLIENT_UTILS_H_
 #define COMPONENTS_UPDATE_CLIENT_UTILS_H_
 
 #include <memory>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "components/update_client/update_client.h"
 #include "components/update_client/updater_state.h"
 
 class GURL;
 
 namespace base {
-class DictionaryValue;
 class FilePath;
 }
 
 namespace net {
 class URLFetcher;
 class URLFetcherDelegate;
 class URLRequestContextGetter;
 }
 
 namespace update_client {
 
-class Configurator;
 struct CrxComponent;
 struct CrxUpdateItem;
 
 // Defines a name-value pair that represents an installer attribute.
 // Installer attributes are component-specific metadata, which may be serialized
 // in an update check request.
 using InstallerAttribute = std::pair<std::string, std::string>;
 
 // An update protocol request starts with a common preamble which includes
 // version and platform information for Chrome and the operating system,
@@ skipping 79 matching lines @@
 // Removes the unsecure urls in the |urls| parameter.
 void RemoveUnsecureUrls(std::vector<GURL>* urls);
 
 // Adapter function for the old definitions of CrxInstaller::Install until the
 // component installer code is migrated to use a REsult instead of bool.
 CrxInstaller::Result InstallFunctionWrapper(base::Callback<bool()> callback);
 
 }  // namespace update_client
 
 #endif  // COMPONENTS_UPDATE_CLIENT_UTILS_H_