base: Add Is* functions to Value class.

chrome/common/extensions/extension_unpacker.cc

 // Copyright (c) 2011 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/common/extensions/extension_unpacker.h"
 
 #include <set>
 
 #include "base/file_util.h"
 #include "base/memory/scoped_handle.h"
@@ skipping 89 matching lines @@
   }
 
   JSONFileValueSerializer serializer(manifest_path);
   std::string error;
   scoped_ptr<Value> root(serializer.Deserialize(NULL, &error));
   if (!root.get()) {
     SetError(error);
     return NULL;
   }
 
-  if (!root->IsType(Value::TYPE_DICTIONARY)) {
+  if (!root->IsDictionary()) {
     SetError(errors::kInvalidManifest);
     return NULL;
   }
 
   return static_cast<DictionaryValue*>(root.release());
 }
 
 bool ExtensionUnpacker::ReadAllMessageCatalogs(
     const std::string& default_locale) {
   FilePath locales_path =
@@ skipping 195 matching lines @@
     return false;
   }
   parsed_catalogs_->Set(dir_name, root.release());
 
   return true;
 }
 
 void ExtensionUnpacker::SetError(const std::string &error) {
   error_message_ = error;
 }