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

content/browser/download/download_file_impl.cc

Index: content/browser/download/download_file_impl.cc
diff --git a/content/browser/download/download_file_impl.cc b/content/browser/download/download_file_impl.cc
index 086c1e4d5271c02d00b0362d8d36631dde19830b..2e6c7a75ae377ad7fd1421c6a6a60e4b1ea13b82 100644
--- a/content/browser/download/download_file_impl.cc
+++ b/content/browser/download/download_file_impl.cc
@@ -22,6 +22,8 @@
 #include "crypto/secure_hash.h"
 #include "crypto/sha2.h"
 #include "net/base/io_buffer.h"
+#include "net/log/net_log_event_type.h"
+#include "net/log/net_log_source_type.h"
 
 namespace content {
 
@@ -43,7 +45,7 @@ DownloadFileImpl::DownloadFileImpl(
     const net::BoundNetLog& download_item_net_log,
     base::WeakPtr<DownloadDestinationObserver> observer)
     : bound_net_log_(net::BoundNetLog::Make(download_item_net_log.net_log(),
-                                            net::NetLog::SOURCE_DOWNLOAD_FILE)),
+                                        net::NetLogSourceType::DOWNLOAD_FILE)),
       file_(bound_net_log_),
       save_info_(std::move(save_info)),
       default_download_directory_(default_download_directory),
@@ -52,16 +54,16 @@ DownloadFileImpl::DownloadFileImpl(
       observer_(observer),
       weak_factory_(this) {
   download_item_net_log.AddEvent(
-      net::NetLog::TYPE_DOWNLOAD_FILE_CREATED,
+      net::NetLogEventType::DOWNLOAD_FILE_CREATED,
       bound_net_log_.source().ToEventParametersCallback());
   bound_net_log_.BeginEvent(
-      net::NetLog::TYPE_DOWNLOAD_FILE_ACTIVE,
+      net::NetLogEventType::DOWNLOAD_FILE_ACTIVE,
       download_item_net_log.source().ToEventParametersCallback());
 }
 
 DownloadFileImpl::~DownloadFileImpl() {
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
-  bound_net_log_.EndEvent(net::NetLog::TYPE_DOWNLOAD_FILE_ACTIVE);
+  bound_net_log_.EndEvent(net::NetLogEventType::DOWNLOAD_FILE_ACTIVE);
 }
 
 void DownloadFileImpl::Initialize(const InitializeCallback& callback) {
@@ -333,7 +335,7 @@ void DownloadFileImpl::StreamActive() {
   }
   if (bound_net_log_.IsCapturing()) {
     bound_net_log_.AddEvent(
-        net::NetLog::TYPE_DOWNLOAD_STREAM_DRAINED,
+        net::NetLogEventType::DOWNLOAD_STREAM_DRAINED,
         base::Bind(&FileStreamDrainedNetLogCallback, total_incoming_data_size,
                    num_buffers));
   }