Add HttpProtocolHandler and convert everything to use it

net/url_request/url_request_http_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_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 27 matching lines @@
 class HttpUserAgentSettings;
 class ProxyInfo;
 class SSLPrivateKey;
 class UploadDataStream;
 class URLRequestContext;
 
 // A URLRequestJob subclass that is built on top of HttpTransaction. It
 // provides an implementation for both HTTP and HTTPS.
 class NET_EXPORT_PRIVATE URLRequestHttpJob : public URLRequestJob {
  public:
-  static URLRequestJob* Factory(URLRequest* request,
-                                NetworkDelegate* network_delegate,
-                                const std::string& scheme);
-
- protected:
+  // Creates a URLRequestHttpJob. Non-test code other than HttpProtocolHandler
+  // shouldn't use this constructor directly, because HttpProtocolHandler is
+  // where HSTS redirects happen.
   URLRequestHttpJob(URLRequest* request,
                     NetworkDelegate* network_delegate,
                     const HttpUserAgentSettings* http_user_agent_settings);
 
+ protected:
   ~URLRequestHttpJob() override;
 
   // Overridden from URLRequestJob:
   void SetPriority(RequestPriority priority) override;
   void Start() override;
   void Kill() override;
   void GetConnectionAttempts(ConnectionAttempts* out) const override;
 
   RequestPriority priority() const {
     return priority_;
@@ skipping 214 matching lines @@
   int64_t total_sent_bytes_from_previous_transactions_;
 
   base::WeakPtrFactory<URLRequestHttpJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestHttpJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_