Add a probability to Alternate-Protocol support.

net/http/http_stream_factory_impl_job.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_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 42 matching lines @@
   int Preconnect(int num_streams);
 
   int RestartTunnelWithProxyAuth(const AuthCredentials& credentials);
   LoadState GetLoadState() const;
 
   // Marks this Job as the "alternate" job, from Alternate-Protocol. Tracks the
   // original url so we can mark the Alternate-Protocol as broken if
   // we fail to connect.  |alternate| specifies the alternate protocol to use
   // and alternate port to connect to.
   void MarkAsAlternate(const GURL& original_url,
-                       PortAlternateProtocolPair alternate);
+                       AlternateProtocolInfo alternate);
 
   // Tells |this| to wait for |job| to resume it.
   void WaitFor(Job* job);
 
   // Tells |this| that |job| has determined it still needs to continue
   // connecting, so allow |this| to continue. If this is not called, then
   // |request_| is expected to cancel |this| by deleting it.
   void Resume(Job* job);
 
   // Used to detach the Job from |request|.
@@ skipping 258 matching lines @@
   JobStatus other_job_status_;
 
   base::WeakPtrFactory<Job> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_