base::Bind: Convert proxy_resolving_client_socket.[cc,h] and deps.

net/socket/client_socket_pool_manager.h

Index: net/socket/client_socket_pool_manager.h
diff --git a/net/socket/client_socket_pool_manager.h b/net/socket/client_socket_pool_manager.h
index 2c5176141661aa0a654b833886daedefa697d1bd..7c1f86587c4a8b6aa25d98af9ecafd9ce5dd6c6d 100644
--- a/net/socket/client_socket_pool_manager.h
+++ b/net/socket/client_socket_pool_manager.h
@@ -88,7 +88,7 @@ int InitSocketHandleForHttpRequest(
     const SSLConfig& ssl_config_for_proxy,
     const BoundNetLog& net_log,
     ClientSocketHandle* socket_handle,
-    OldCompletionCallback* callback);
+    const CompletionCallback& callback);
 
 // A helper method that uses the passed in proxy information to initialize a
 // ClientSocketHandle with the relevant socket pool. Use this method for
@@ -102,7 +102,7 @@ NET_EXPORT int InitSocketHandleForRawConnect(
     const SSLConfig& ssl_config_for_proxy,
     const BoundNetLog& net_log,
     ClientSocketHandle* socket_handle,
-    OldCompletionCallback* callback);
+    const CompletionCallback& callback);
 
 // Similar to InitSocketHandleForHttpRequest except that it initiates the
 // desired number of preconnect streams from the relevant socket pool.