base: Add Is* functions to Value class.

net/test/test_server.cc

Index: net/test/test_server.cc
diff --git a/net/test/test_server.cc b/net/test/test_server.cc
index 8723215c777ce00c7e86846a879e2d05a5c52066..8c1055ed4027e7a3eedb72fdc7c0957bb0e7a21f 100644
--- a/net/test/test_server.cc
+++ b/net/test/test_server.cc
@@ -323,8 +323,7 @@ bool TestServer::ParseServerData(const std::string& server_data) {
   VLOG(1) << "Server data: " << server_data;
   base::JSONReader json_reader;
   scoped_ptr<Value> value(json_reader.JsonToValue(server_data, true, false));
-  if (!value.get() ||
-      !value->IsType(Value::TYPE_DICTIONARY)) {
+  if (!value.get() || !value->IsDictionary()) {
     LOG(ERROR) << "Could not parse server data: "
                << json_reader.GetErrorMessage();
     return false;