Add HttpProtocolHandler and convert everything to use it

net/url_request/url_request_job_manager.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_JOB_MANAGER_H_
 #define NET_URL_REQUEST_URL_REQUEST_JOB_MANAGER_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 32 matching lines @@
                                         NetworkDelegate* network_delegate,
                                         const GURL& location) const;
 
   // Allows interceptors to hijack the request after examining the response
   // status and headers. This is also called when there is no server response
   // at all to allow interception of failed requests due to network errors.
   // Returns NULL if no interceptor intervenes.
   URLRequestJob* MaybeInterceptResponse(
       URLRequest* request, NetworkDelegate* network_delegate) const;
 
-  // Returns true if the manager has a built-in handler for |scheme|.
-  static bool SupportsScheme(const std::string& scheme);
-
  private:
   friend struct base::DefaultSingletonTraits<URLRequestJobManager>;
 
   URLRequestJobManager();
   ~URLRequestJobManager();
 
   // The first guy to call this function sets the allowed thread.  This way we
   // avoid needing to define that thread externally.  Since we expect all
   // callers to be on the same thread, we don't worry about threads racing to
   // set the allowed thread.
@@ skipping 17 matching lines @@
     return true;
   }
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestJobManager);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_JOB_MANAGER_H_