Extracting NetLog inner classes into their own classes.

extensions/browser/api/web_request/web_request_api_helpers.cc

Index: extensions/browser/api/web_request/web_request_api_helpers.cc
diff --git a/extensions/browser/api/web_request/web_request_api_helpers.cc b/extensions/browser/api/web_request/web_request_api_helpers.cc
index 906d13c732869f0a184c41dfc654e2f133d611d1..990570b71abd3f04ef512915ed47f1487e7c09ce 100644
--- a/extensions/browser/api/web_request/web_request_api_helpers.cc
+++ b/extensions/browser/api/web_request/web_request_api_helpers.cc
@@ -32,7 +32,10 @@
 #include "net/cookies/parsed_cookie.h"
 #include "net/http/http_util.h"
 #include "net/log/net_log.h"
+#include "net/log/net_log_capture_mode.h"
 #include "net/log/net_log_event_type.h"
+#include "net/log/net_log_parameters_callback.h"
+#include "net/log/net_log_with_source.h"
 #include "net/url_request/url_request.h"
 #include "url/url_constants.h"
 
@@ -255,7 +258,7 @@ EventResponseDelta::~EventResponseDelta() {
 // Creates a NetLog callback the returns a Value with the ID of the extension
 // that caused an event.  |delta| must remain valid for the lifetime of the
 // callback.
-net::NetLog::ParametersCallback CreateNetLogExtensionIdCallback(
+net::NetLogParametersCallback CreateNetLogExtensionIdCallback(
     const EventResponseDelta* delta) {
   return net::NetLog::StringCallback("extension_id", &delta->extension_id);
 }