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

components/sync/syncable/model_type.cc

Index: components/sync/syncable/model_type.cc
diff --git a/components/sync/syncable/model_type.cc b/components/sync/syncable/model_type.cc
index 08fa26d6e9b95e366a51f651a0c4428929821434..d256055fcc8e63cab1b1729f751c2cdd65ecdc80 100644
--- a/components/sync/syncable/model_type.cc
+++ b/components/sync/syncable/model_type.cc
@@ -615,11 +615,11 @@ base::StringValue* ModelTypeToValue(ModelType model_type) {
 }
 
 ModelType ModelTypeFromValue(const base::Value& value) {
-  if (value.IsType(base::Value::TYPE_STRING)) {
+  if (value.IsType(base::Value::Type::STRING)) {
     std::string result;
     CHECK(value.GetAsString(&result));
     return ModelTypeFromString(result);
-  } else if (value.IsType(base::Value::TYPE_INTEGER)) {
+  } else if (value.IsType(base::Value::Type::INTEGER)) {
     int result;
     CHECK(value.GetAsInteger(&result));
     return ModelTypeFromInt(result);