[WIP] Pretend-to-preconnect for {mouse,touch}-event triggers.

net/socket/client_socket_pool_manager.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // ClientSocketPoolManager manages access to all ClientSocketPools.  It's a
 // simple container for all of them.  Most importantly, it handles the lifetime
 // and destruction order properly.
 
 #ifndef NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_
 #define NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_
@@ skipping 117 matching lines @@
     RequestPriority request_priority,
     HttpNetworkSession* session,
     const ProxyInfo& proxy_info,
     bool force_spdy_over_ssl,
     bool want_spdy_over_npn,
     const SSLConfig& ssl_config_for_origin,
     const SSLConfig& ssl_config_for_proxy,
     const BoundNetLog& net_log,
     int num_preconnect_streams);
 
+// Simulate effect of PreconnectSocketsForHttpRequest.
+// Returns number of connections that would have been initiated
+// for preconnect request.
+int PretendToPreconnectSocketsForHttpRequest(
+    const GURL& request_url,
+    const HttpRequestHeaders& request_extra_headers,
+    int request_load_flags,
+    RequestPriority request_priority,
+    HttpNetworkSession* session,
+    const ProxyInfo& proxy_info,
+    bool force_spdy_over_ssl,
+    bool want_spdy_over_npn,
+    const SSLConfig& ssl_config_for_origin,
+    const SSLConfig& ssl_config_for_proxy,
+    const BoundNetLog& net_log,
+    int num_preconnect_streams);
+
 }  // namespace net
 
 #endif  // NET_SOCKET_CLIENT_SOCKET_POOL_MANAGER_H_