[Chromecast] Add proxy server support to chromecast

chromecast/net/connectivity_checker.h

Index: chromecast/net/connectivity_checker.h
diff --git a/chromecast/net/connectivity_checker.h b/chromecast/net/connectivity_checker.h
index a9711181132385ddb4dc292f0944d1db3484edff..9ad74acb45d3b0a8455e490893cd085ab7eed3a0 100644
--- a/chromecast/net/connectivity_checker.h
+++ b/chromecast/net/connectivity_checker.h
@@ -17,6 +17,10 @@ namespace base {
 class SingleThreadTaskRunner;
 }
 
+namespace net {
+class ProxyConfig;
+}
+
 namespace chromecast {
 
 // Checks if internet connectivity is available.
@@ -37,7 +41,8 @@ class ConnectivityChecker
   };
 
   static scoped_refptr<ConnectivityChecker> Create(
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+      net::ProxyConfig& proxy_config);
 
   ConnectivityChecker();