Move Extension into extensions namespace

chrome/browser/policy/configuration_policy_handler.cc

 // 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.
 
 #include "chrome/browser/policy/configuration_policy_handler.h"
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/json/json_writer.h"
@@ skipping 247 matching lines @@
   for (base::ListValue::const_iterator entry(list_value->begin());
        entry != list_value->end(); ++entry) {
     std::string id;
     if (!(*entry)->GetAsString(&id)) {
       errors->AddError(policy_name(),
                        entry - list_value->begin(),
                        IDS_POLICY_TYPE_ERROR,
                        ValueTypeToString(base::Value::TYPE_STRING));
       return false;
     }
-    if (!(allow_wildcards_ && id == "*") && !Extension::IdIsValid(id)) {
+    if (!(allow_wildcards_ && id == "*") &&
+        !extensions::Extension::IdIsValid(id)) {
       errors->AddError(policy_name(),
                        entry - list_value->begin(),
                        IDS_POLICY_VALUE_FORMAT_ERROR);
       return false;
     }
   }
 
   if (extension_ids)
     *extension_ids = list_value;
 
@@ skipping 866 matching lines @@
           errors->AddError(policy_name(),
                            IDS_POLICY_OUT_OF_RANGE_ERROR,
                            base::IntToString(restore_value));
       }
     }
   }
   return true;
 }
 
 }  // namespace policy