Extracted NetLog class's inner enum types into their own enum classes and

net/http/http_auth_handler_unittest.cc

Index: net/http/http_auth_handler_unittest.cc
diff --git a/net/http/http_auth_handler_unittest.cc b/net/http/http_auth_handler_unittest.cc
index 1bb384ff1cdd6166fae0fc6e8e58ddab26c99806..aa52783c8e42bb193f3476c9acdd6c582790fbfb 100644
--- a/net/http/http_auth_handler_unittest.cc
+++ b/net/http/http_auth_handler_unittest.cc
@@ -11,6 +11,8 @@
 #include "net/http/http_auth_challenge_tokenizer.h"
 #include "net/http/http_auth_handler_mock.h"
 #include "net/http/http_request_info.h"
+#include "net/log/net_log_event_type.h"
+#include "net/log/net_log_source_type.h"
 #include "net/log/test_net_log.h"
 #include "net/log/test_net_log_entry.h"
 #include "net/log/test_net_log_util.h"
@@ -35,14 +37,15 @@ TEST(HttpAuthHandlerTest, NetLog) {
         TestCompletionCallback test_callback;
         HttpAuth::Target target =
             (k == 0) ? HttpAuth::AUTH_PROXY : HttpAuth::AUTH_SERVER;
-        NetLog::EventType event_type =
-            (k == 0) ? NetLog::TYPE_AUTH_PROXY : NetLog::TYPE_AUTH_SERVER;
+        NetLogEventType event_type =
+            (k == 0) ? NetLogEventType::AUTH_PROXY :
+                       NetLogEventType::AUTH_SERVER;
         HttpAuthChallengeTokenizer tokenizer(
             challenge.begin(), challenge.end());
         HttpAuthHandlerMock mock_handler;
         TestNetLog test_net_log;
         BoundNetLog bound_net_log(
-            BoundNetLog::Make(&test_net_log, NetLog::SOURCE_NONE));
+            BoundNetLog::Make(&test_net_log, NetLogSourceType::NONE));
 
         SSLInfo empty_ssl_info;
         mock_handler.InitFromChallenge(&tokenizer, target, empty_ssl_info,