Allow customization of HttpPostProviderFactory via ProfileSyncService

sync/internal_api/public/http_bridge.h

 // Copyright 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_BRIDGE_H_
 #define SYNC_INTERNAL_API_PUBLIC_HTTP_BRIDGE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 219 matching lines @@
   NetworkTimeUpdateCallback network_time_update_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpBridge);
 };
 
 class SYNC_EXPORT HttpBridgeFactory : public HttpPostProviderFactory,
                                       public CancelationObserver {
  public:
   HttpBridgeFactory(
       net::URLRequestContextGetter* baseline_context_getter,
-      const NetworkTimeUpdateCallback& network_time_update_callback,
-      CancelationSignal* cancelation_signal);
+      const NetworkTimeUpdateCallback& network_time_update_callback);
   virtual ~HttpBridgeFactory();
 
   // HttpPostProviderFactory:
   virtual void Init(const std::string& user_agent) OVERRIDE;
+  virtual void RegisterCancelationSignal(
+      CancelationSignal* cancelation_signal) OVERRIDE;
   virtual HttpPostProviderInterface* Create() OVERRIDE;
   virtual void Destroy(HttpPostProviderInterface* http) OVERRIDE;
 
   // CancelationObserver implementation:
   virtual void OnSignalReceived() OVERRIDE;
 
  private:
   // Protects |request_context_getter_| and |baseline_request_context_getter_|.
   base::Lock context_getter_lock_;
 
   // This request context is the starting point for the request_context_getter_
   // that we eventually use to make requests.  During shutdown we must drop all
   // references to it before the ProfileSyncService's Shutdown() call is
   // complete.
   scoped_refptr<net::URLRequestContextGetter> baseline_request_context_getter_;
 
   // This request context is built on top of the baseline context and shares
   // common components. Takes a reference to the
   // baseline_request_context_getter_.  It's mostly used on sync thread when
   // creating connection but is released as soon as possible during shutdown.
   // Protected by |context_getter_lock_|.
   scoped_refptr<HttpBridge::RequestContextGetter> request_context_getter_;
 
   NetworkTimeUpdateCallback network_time_update_callback_;
 
-  CancelationSignal* const cancelation_signal_;
+  CancelationSignal* cancelation_signal_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpBridgeFactory);
 };
 
 }  //  namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_HTTP_BRIDGE_H_