Move logic to figure out if a socket can be reused into HttpStream.

net/http/http_basic_stream.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.
 //
 // HttpBasicStream is a simple implementation of HttpStream.  It assumes it is
 // not sharing a sharing with any other HttpStreams, therefore it just reads and
 // writes directly to the Http Stream.
 
 #ifndef NET_HTTP_HTTP_BASIC_STREAM_H_
 #define NET_HTTP_HTTP_BASIC_STREAM_H_
@@ skipping 38 matching lines @@
   int ReadResponseBody(IOBuffer* buf,
                        int buf_len,
                        const CompletionCallback& callback) override;
 
   void Close(bool not_reusable) override;
 
   HttpStream* RenewStreamForAuth() override;
 
   bool IsResponseBodyComplete() const override;
 
-  bool CanFindEndOfResponse() const override;
-
   bool IsConnectionReused() const override;
 
   void SetConnectionReused() override;
 
-  bool IsConnectionReusable() const override;
+  bool CanReuseConnection() const override;
 
   int64 GetTotalReceivedBytes() const override;
 
   bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const override;
 
   void GetSSLInfo(SSLInfo* ssl_info) override;
 
   void GetSSLCertRequestInfo(SSLCertRequestInfo* cert_request_info) override;
 
-  bool IsSpdyHttpStream() const override;
-
   void Drain(HttpNetworkSession* session) override;
 
   void SetPriority(RequestPriority priority) override;
 
  private:
   HttpStreamParser* parser() const { return state_.parser(); }
 
   HttpBasicState state_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpBasicStream);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_BASIC_STREAM_H_