Extracting NetLog inner classes into their own classes.

content/shell/browser/shell_devtools_manager_delegate.cc

Index: content/shell/browser/shell_devtools_manager_delegate.cc
diff --git a/content/shell/browser/shell_devtools_manager_delegate.cc b/content/shell/browser/shell_devtools_manager_delegate.cc
index 77349c7f31a6262f1a8db5e71f985af807c03362..32b65bace89e5843f7730f939bfcf51c0fb8a7dc 100644
--- a/content/shell/browser/shell_devtools_manager_delegate.cc
+++ b/content/shell/browser/shell_devtools_manager_delegate.cc
@@ -33,6 +33,7 @@
 #include "content/shell/common/shell_content_client.h"
 #include "grit/shell_resources.h"
 #include "net/base/net_errors.h"
+#include "net/log/net_log_source.h"
 #include "net/socket/tcp_server_socket.h"
 #include "ui/base/resource/resource_bundle.h"
 
@@ -91,7 +92,7 @@ class TCPServerSocketFactory : public content::DevToolsSocketFactory {
   // content::DevToolsSocketFactory.
   std::unique_ptr<net::ServerSocket> CreateForHttpServer() override {
     std::unique_ptr<net::ServerSocket> socket(
-        new net::TCPServerSocket(nullptr, net::NetLog::Source()));
+        new net::TCPServerSocket(nullptr, net::NetLogSource()));
     if (socket->ListenWithAddressAndPort(address_, port_, kBackLog) != net::OK)
       return std::unique_ptr<net::ServerSocket>();