Remove the Value class names from the global namespace.

chrome/browser/prefs/pref_hash_calculator.cc

 // Copyright 2013 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/prefs/pref_hash_calculator.h"
 
 #include <vector>
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
 #include "crypto/hmac.h"
 
 namespace {
 
 // Renders |value| as a string. |value| may be NULL, in which case the result
 // is an empty string.
 std::string ValueAsString(const base::Value* value) {
   // Dictionary values may contain empty lists and sub-dictionaries. Make a
   // deep copy with those removed to make the hash more stable.
   const base::DictionaryValue* dict_value;
-  scoped_ptr<DictionaryValue> canonical_dict_value;
+  scoped_ptr<base::DictionaryValue> canonical_dict_value;
   if (value && value->GetAsDictionary(&dict_value)) {
     canonical_dict_value.reset(dict_value->DeepCopyWithoutEmptyChildren());
     value = canonical_dict_value.get();
   }
 
   std::string value_as_string;
   if (value) {
     JSONStringValueSerializer serializer(&value_as_string);
     serializer.Serialize(*value);
   }
@@ skipping 45 matching lines @@
     return VALID_LEGACY;
   return INVALID;
 }
 
 std::string PrefHashCalculator::CalculateLegacyHash(
     const std::string& path, const base::Value* value) const {
   return CalculateFromValueAndComponents(seed_,
                                          value,
                                          std::vector<std::string>());
 }