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

components/drive/service/fake_drive_service.cc

Index: components/drive/service/fake_drive_service.cc
diff --git a/components/drive/service/fake_drive_service.cc b/components/drive/service/fake_drive_service.cc
index f0ed4b1a26ff983f89429d3dffb3fdddb7ae5111..26b23f3a4f4c2201cb3cc0809de4c49c9b776068 100644
--- a/components/drive/service/fake_drive_service.cc
+++ b/components/drive/service/fake_drive_service.cc
@@ -260,7 +260,7 @@ bool FakeDriveService::LoadAppListForDriveApi(
 
   // Load JSON data, which must be a dictionary.
   std::unique_ptr<base::Value> value = test_util::LoadJSONFile(relative_path);
-  CHECK_EQ(base::Value::TYPE_DICTIONARY, value->GetType());
+  CHECK_EQ(base::Value::Type::DICTIONARY, value->GetType());
   app_info_value_.reset(
       static_cast<base::DictionaryValue*>(value.release()));
   return !!app_info_value_;
@@ -288,7 +288,7 @@ void FakeDriveService::AddApp(const std::string& app_id,
   JSONStringValueDeserializer json(app_json);
   std::string error_message;
   std::unique_ptr<base::Value> value(json.Deserialize(NULL, &error_message));
-  CHECK_EQ(base::Value::TYPE_DICTIONARY, value->GetType());
+  CHECK_EQ(base::Value::Type::DICTIONARY, value->GetType());
 
   base::ListValue* item_list;
   CHECK(app_info_value_->GetListWithoutPathExpansion("items", &item_list));