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

chrome/browser/extensions/extension_service_unittest.cc

Index: chrome/browser/extensions/extension_service_unittest.cc
diff --git a/chrome/browser/extensions/extension_service_unittest.cc b/chrome/browser/extensions/extension_service_unittest.cc
index 744a4faa68d086bca754c3b618fca2c1cc450389..663e4c563a5c22b2193ed57e8144cdce46dd72de 100644
--- a/chrome/browser/extensions/extension_service_unittest.cc
+++ b/chrome/browser/extensions/extension_service_unittest.cc
@@ -494,7 +494,7 @@ class MockProviderVisitor
     std::unique_ptr<base::Value> json_value =
         deserializer.Deserialize(NULL, NULL);
 
-    if (!json_value || !json_value->IsType(base::Value::TYPE_DICTIONARY)) {
+    if (!json_value || !json_value->IsType(base::Value::Type::DICTIONARY)) {
       ADD_FAILURE() << "Unable to deserialize json data";
       return std::unique_ptr<base::DictionaryValue>();
     } else {