Refactor pooling logic into a helper method

net/http/http_util.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_UTIL_H_
 #define NET_HTTP_HTTP_UTIL_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/strings/string_tokenizer.h"
 #include "net/base/net_export.h"
 #include "net/http/http_byte_range.h"
 #include "net/http/http_version.h"
 #include "url/gurl.h"
 
 // This is a macro to support extending this string literal at compile time.
 // Please excuse me polluting your global namespace!
 #define HTTP_LWS " \t"
 
 namespace net {
 
+class CertVerifyResult;
+class SSLInfo;
+class TransportSecurityState;
+
 class NET_EXPORT HttpUtil {
  public:
   // Returns the absolute path of the URL, to be used for the http request.
   // The absolute path starts with a '/' and may contain a query.
   static std::string PathForRequest(const GURL& url);
 
   // Returns the absolute URL, to be used for the http request. This url is
   // made up of the protocol, host, [port], path, [query]. Everything else
   // is stripped (username, password, reference).
   static std::string SpecForRequest(const GURL& url);
@@ skipping 157 matching lines @@
 
   // Gets a vector of common HTTP status codes for histograms of status
   // codes.  Currently returns everything in the range [100, 600), plus 0
   // (for invalid responses/status codes).
   static std::vector<int> GetStatusCodesForHistogram();
 
   // Maps an HTTP status code to one of the status codes in the vector
   // returned by GetStatusCodesForHistogram.
   static int MapStatusCodeForHistogram(int code);
 
+  // Returns true if |hostname| can be pooled into an existing connection
+  // associated with |ssl_info|.
+  static bool CanPool(TransportSecurityState* transport_security_state,
+                      const SSLInfo& ssl_info,
+                      const std::string& old_hostname,
+                      const std::string& new_hostname);
+
   // Used to iterate over the name/value pairs of HTTP headers.  To iterate
   // over the values in a multi-value header, use ValuesIterator.
   // See AssembleRawHeaders for joining line continuations (this iterator
   // does not expect any).
   class NET_EXPORT HeadersIterator {
    public:
     HeadersIterator(std::string::const_iterator headers_begin,
                     std::string::const_iterator headers_end,
                     const std::string& line_delimiter);
     ~HeadersIterator();
@@ skipping 139 matching lines @@
     // into the original's unquoted_value_ member.
     std::string unquoted_value_;
 
     bool value_is_quoted_;
   };
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_UTIL_H_