Added Client-Hints.

chrome/browser/net/chrome_network_delegate.h

Index: chrome/browser/net/chrome_network_delegate.h
diff --git a/chrome/browser/net/chrome_network_delegate.h b/chrome/browser/net/chrome_network_delegate.h
index 90e7a75a80023471655c2c7ff761b207b27c084b..6c31f0fbf226b125f8cbc7df72a641d24350d070 100644
--- a/chrome/browser/net/chrome_network_delegate.h
+++ b/chrome/browser/net/chrome_network_delegate.h
@@ -11,6 +11,7 @@
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
+#include "chrome/browser/net/client_hints.h"
 #include "net/base/network_delegate.h"
 
 class CookieSettings;
@@ -203,6 +204,8 @@ class ChromeNetworkDelegate : public net::NetworkDelegate {
   // Total original size of all content before it was transferred.
   int64 original_content_length_;
 
+  scoped_refptr<ClientHints> client_hints_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeNetworkDelegate);
 };