Make base::Value::TYPE a scoped enum.

remoting/test/host_list_fetcher.cc

Index: remoting/test/host_list_fetcher.cc
diff --git a/remoting/test/host_list_fetcher.cc b/remoting/test/host_list_fetcher.cc
index 1b5dc2adf0751871ab5239dae57d8fb29b15c47f..09fc3d52da87795128936574ac8a9d7d5c3f5b79 100644
--- a/remoting/test/host_list_fetcher.cc
+++ b/remoting/test/host_list_fetcher.cc
@@ -62,7 +62,7 @@ bool HostListFetcher::ProcessResponse(
   std::unique_ptr<base::Value> response_value(
       base::JSONReader::Read(response_string));
   if (!response_value ||
-      !response_value->IsType(base::Value::TYPE_DICTIONARY)) {
+      !response_value->IsType(base::Value::Type::DICTIONARY)) {
     LOG(ERROR) << "Failed to parse response string to JSON";
     return false;
   }