Add reprioritization to socket pools.

net/socket/transport_client_socket_pool.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.
 
 #ifndef NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 234 matching lines @@
                     const void* resolve_info,
                     RequestPriority priority,
                     RespectLimits respect_limits,
                     ClientSocketHandle* handle,
                     const CompletionCallback& callback,
                     const BoundNetLog& net_log) override;
   void RequestSockets(const std::string& group_name,
                       const void* params,
                       int num_sockets,
                       const BoundNetLog& net_log) override;
+  void SetPriority(const std::string& group_name,
+                   ClientSocketHandle* handle,
+                   RequestPriority priority) override;
   void CancelRequest(const std::string& group_name,
                      ClientSocketHandle* handle) override;
   void ReleaseSocket(const std::string& group_name,
                      std::unique_ptr<StreamSocket> socket,
                      int id) override;
   void FlushWithError(int error) override;
   void CloseIdleSockets() override;
   int IdleSocketCount() const override;
   int IdleSocketCountInGroup(const std::string& group_name) const override;
   LoadState GetLoadState(const std::string& group_name,
@@ skipping 108 matching lines @@
         break;
     }
   } while (rv != ERR_IO_PENDING && next_state_ != STATE_NONE);
 
   return rv;
 }
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TRANSPORT_CLIENT_SOCKET_POOL_H_