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 85bfd0fbb063343a161559080a71922189d148c7..e03b7dfec9555617a5cd6991c009737b82e18dd3 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;
@@ -50,7 +51,8 @@ class ChromeNetworkDelegate : public net::NetworkDelegate {
   // initialized on the UI thread (see below) beforehand. This object's owner is
   // responsible for cleaning them up at shutdown.
   ChromeNetworkDelegate(extensions::EventRouterForwarder* event_router,
-                        BooleanPrefMember* enable_referrers);
+                        BooleanPrefMember* enable_referrers,
+                        bool enable_client_hints);

[Ryan Sleevi, 2013/02/08 22:12:53]

Is there a reason this needs to be part of the constructor, as opposed to having
set_xxx methods like we do for everything else?

[bengr, 2013/02/26 01:57:20]

Done.

   virtual ~ChromeNetworkDelegate();
 
   // Not inlined because we assign a scoped_refptr, which requires us to include
@@ -203,6 +205,8 @@ 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);
 };