Adding NetLog support to SafeBrowsingPingManager.

chrome/browser/safe_browsing/ping_manager.h

Index: chrome/browser/safe_browsing/ping_manager.h
diff --git a/chrome/browser/safe_browsing/ping_manager.h b/chrome/browser/safe_browsing/ping_manager.h
index 56d2d95241279670bc40f1811e4cbd6eb7c0c6e3..a8cde17ab79bc3282035d83c778ba802182bd893 100644
--- a/chrome/browser/safe_browsing/ping_manager.h
+++ b/chrome/browser/safe_browsing/ping_manager.h
@@ -19,6 +19,7 @@
 #include "components/safe_browsing_db/hit_report.h"
 #include "components/safe_browsing_db/util.h"
 #include "content/public/browser/permission_type.h"
+#include "net/log/net_log.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "url/gurl.h"
 
@@ -111,6 +112,8 @@ class SafeBrowsingPingManager : public net::URLFetcherDelegate {
   // Sends reports of permission actions.
   std::unique_ptr<PermissionReporter> permission_reporter_;
 
+  net::NetLogWithSource net_log_;
+
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingPingManager);
 };