Fix race between OnPipelineFeedback and

net/http/http_pipelined_host_impl.h

 // Copyright (c) 2011 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_HTTP_HTTP_PIPELINED_HOST_IMPL_H_
 #define NET_HTTP_HTTP_PIPELINED_HOST_IMPL_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 67 matching lines @@
   // the connection.
   void OnPipelineEmpty(HttpPipelinedConnection* pipeline);
 
   // Adds the next pending request to the pipeline if it's still usuable.
   void AddRequestToPipeline(HttpPipelinedConnection* connection);
 
   // Returns the current pipeline capacity based on |capability_|. This should
   // not be called if |capability_| is INCAPABLE.
   int GetPipelineCapacity() const;
 
+  // Returns true if |pipeline| can handle a new request. This is true if the
+  // |pipeline| is active, usable, has capacity, and |capability_| is
+  // sufficient.
+  bool CanPipelineAcceptRequests(HttpPipelinedConnection* pipeline) const;
+
+  // Called when |this| moves from UNKNOWN |capability_| to PROBABLY_CAPABLE.
+  // Causes all pipelines to increase capacity to start pipelining.
+  void NotifyAllPipelinesHaveCapacity();
+
   HttpPipelinedHost::Delegate* delegate_;
   const HostPortPair origin_;
   PipelineInfoMap pipelines_;
   scoped_ptr<HttpPipelinedConnection::Factory> factory_;
   Capability capability_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpPipelinedHostImpl);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_PIPELINED_HOST_IMPL_H_