Add a force pipelining option to load flags.

net/http/http_pipelined_host_pool.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_POOL_H_
 #define NET_HTTP_HTTP_PIPELINED_HOST_POOL_H_
 #pragma once
 
 #include <map>
 
@@ skipping 17 matching lines @@
 // HTTP requests. Manages connection jobs, constructs pipelined streams, and
 // assigns requests to the least loaded pipelined connection.
 class NET_EXPORT_PRIVATE HttpPipelinedHostPool
     : public HttpPipelinedHost::Delegate {
  public:
   class Delegate {
    public:
     // Called when a HttpPipelinedHost has new capacity. Attempts to allocate
     // any pending pipeline-capable requests to pipelines.
     virtual void OnHttpPipelinedHostHasAdditionalCapacity(
-        const HostPortPair& origin) = 0;
+        HttpPipelinedHost* host) = 0;
   };
 
   HttpPipelinedHostPool(Delegate* delegate,
                         HttpPipelinedHost::Factory* factory,
                         HttpServerProperties* http_server_properties_);
   virtual ~HttpPipelinedHostPool();
 
-  // Returns true if pipelining might work for |origin|. Generally, this returns
-  // true, unless |origin| is known to have failed pipelining recently.
-  bool IsHostEligibleForPipelining(const HostPortPair& origin);
+  // Returns true if pipelining might work for |key|. Generally, this returns
+  // true, unless |key| is known to have failed pipelining recently.
+  bool IsKeyEligibleForPipelining(const HttpPipelinedHost::Key& key);
 
   // Constructs a new pipeline on |connection| and returns a new
   // HttpPipelinedStream that uses it.
   HttpPipelinedStream* CreateStreamOnNewPipeline(
-      const HostPortPair& origin,
+      const HttpPipelinedHost::Key& key,
       ClientSocketHandle* connection,
       const SSLConfig& used_ssl_config,
       const ProxyInfo& used_proxy_info,
       const BoundNetLog& net_log,
       bool was_npn_negotiated,
       SSLClientSocket::NextProto protocol_negotiated);
 
   // Tries to find an existing pipeline with capacity for a new request. If
   // successful, returns a new stream on that pipeline. Otherwise, returns NULL.
   HttpPipelinedStream* CreateStreamOnExistingPipeline(
-      const HostPortPair& origin);
+      const HttpPipelinedHost::Key& key);
 
-  // Returns true if a pipelined connection already exists for this origin and
+  // Returns true if a pipelined connection already exists for |key| and
   // can accept new requests.
-  bool IsExistingPipelineAvailableForOrigin(const HostPortPair& origin);
+  bool IsExistingPipelineAvailableForKey(const HttpPipelinedHost::Key& key);
 
   // Callbacks for HttpPipelinedHost.
   virtual void OnHostIdle(HttpPipelinedHost* host) OVERRIDE;
 
   virtual void OnHostHasAdditionalCapacity(HttpPipelinedHost* host) OVERRIDE;
 
   virtual void OnHostDeterminedCapability(
       HttpPipelinedHost* host,
       HttpPipelinedHostCapability capability) OVERRIDE;
 
   // Creates a Value summary of this pool's |host_map_|. Caller assumes
   // ownership of the returned Value.
   base::Value* PipelineInfoToValue() const;
 
  private:
-  typedef std::map<const HostPortPair, HttpPipelinedHost*> HostMap;
+  typedef std::map<HttpPipelinedHost::Key, HttpPipelinedHost*> HostMap;
 
-  HttpPipelinedHost* GetPipelinedHost(const HostPortPair& origin,
+  HttpPipelinedHost* GetPipelinedHost(const HttpPipelinedHost::Key& key,
                                       bool create_if_not_found);
 
   Delegate* delegate_;
   scoped_ptr<HttpPipelinedHost::Factory> factory_;
   HostMap host_map_;
   HttpServerProperties* http_server_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpPipelinedHostPool);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_PIPELINED_HOST_POOL_H_