Remove raw DictionaryValue::Set in //chrome

chrome/browser/extensions/api/proxy/proxy_api_helpers.h

 // 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.
 
 // Definition of helper functions for the Chrome Extensions Proxy Settings API.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_PROXY_PROXY_API_HELPERS_H_
 #define CHROME_BROWSER_EXTENSIONS_API_PROXY_PROXY_API_HELPERS_H_
 
 #include <memory>
@@ skipping 94 matching lines @@
                  const std::string& joiner,
                  std::string* out,
                  std::string* error,
                  bool* bad_message);
 
 
 // Helper functions for browser->extension pref transformation:
 
 // Creates and returns a ProxyRules dictionary as defined in the extension API
 // with the values of a ProxyConfigDictionary configured for fixed proxy
-// servers. Returns NULL in case of failures. Ownership is passed to the caller.
-base::DictionaryValue* CreateProxyRulesDict(
+// servers. Returns NULL in case of failures.
+std::unique_ptr<base::DictionaryValue> CreateProxyRulesDict(
     const ProxyConfigDictionary& proxy_config);
 
 // Creates and returns a ProxyServer dictionary as defined in the extension API
-// with values from a net::ProxyServer object. Never returns NULL. Ownership is
-// passed to the caller.
-base::DictionaryValue* CreateProxyServerDict(const net::ProxyServer& proxy);
+// with values from a net::ProxyServer object. Never returns NULL.
+std::unique_ptr<base::DictionaryValue> CreateProxyServerDict(
+    const net::ProxyServer& proxy);
 
 // Creates and returns a PacScript dictionary as defined in the extension API
 // with the values of a ProxyconfigDictionary configured for pac scripts.
-// Returns NULL in case of failures. Ownership is passed to the caller.
-base::DictionaryValue* CreatePacScriptDict(
+// Returns NULL in case of failures.
+std::unique_ptr<base::DictionaryValue> CreatePacScriptDict(
     const ProxyConfigDictionary& proxy_config);
 
 // Tokenizes the |in| at delimiters |delims| and returns a new ListValue with
-// StringValues created from the tokens. Ownership is passed to the caller.
-base::ListValue* TokenizeToStringList(const std::string& in,
-                                      const std::string& delims);
+// StringValues created from the tokens.
+std::unique_ptr<base::ListValue> TokenizeToStringList(
+    const std::string& in,
+    const std::string& delims);
 
 }  // namespace proxy_api_helpers
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_PROXY_PROXY_API_HELPERS_H_