[Sync] Move HttpBridge to sync/

sync/internal_api/public/http_post_provider_interface.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 SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_INTERFACE_H_
 #define SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_INTERFACE_H_
 #pragma once
 
 #include <string>
 
 namespace csync {
 
 // An interface the embedding application (e.g. Chromium) implements to provide
 // required HTTP POST functionality to the syncer backend. This interface is
 // designed for one-time use. You create one, use it, and create another if you
 // want to make a subsequent POST.
 class HttpPostProviderInterface {
  public:
-  // Use specified user agent string when POSTing. If not called a default UA
-  // may be used.
-  virtual void SetUserAgent(const char* user_agent) = 0;
-
   // Add additional headers to the request.
   virtual void SetExtraRequestHeaders(const char* headers) = 0;
 
   // Set the URL to POST to.
   virtual void SetURL(const char* url, int port) = 0;
 
   // Set the type, length and content of the POST payload.
   // |content_type| is a null-terminated MIME type specifier.
   // |content| is a data buffer; Do not interpret as a null-terminated string.
   // |content_length| is the total number of chars in |content|. It is used to
@@ skipping 25 matching lines @@
   // This must be safe to call from any thread.
   virtual void Abort() = 0;
 
  protected:
   virtual ~HttpPostProviderInterface() {}
 };
 
 }  // namespace csync
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_INTERFACE_H_