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"
-#include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "net/base/network_time_notifier.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_context.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/base/cancelation_observer.h"
 #include "sync/internal_api/public/http_post_provider_factory.h"
 #include "sync/internal_api/public/http_post_provider_interface.h"
+#include "sync/internal_api/public/network_time_update_callback.h"
 #include "url/gurl.h"
 
 class HttpBridgeTest;
 
 namespace base {
 class MessageLoop;
 }
 
 namespace net {
 class HttpResponseHeaders;
 class HttpUserAgentSettings;
 class URLFetcher;
 }
 
 namespace syncer {
 
 class CancelationSignal;
 
-// Callback for updating the network time.
-// Params:
-// const base::Time& network_time - the new network time.
-// const base::TimeDelta& resolution - how precise the reading is.
-// const base::TimeDelta& latency - the http request's latency.
-typedef base::Callback<void(const base::Time&,
-                            const base::TimeDelta&,
-                            const base::TimeDelta&)> NetworkTimeUpdateCallback;
-
 // A bridge between the syncer and Chromium HTTP layers.
 // Provides a way for the sync backend to use Chromium directly for HTTP
 // requests rather than depending on a third party provider (e.g libcurl).
 // This is a one-time use bridge. Create one for each request you want to make.
 // It is RefCountedThreadSafe because it can PostTask to the io loop, and thus
 // needs to stick around across context switches, etc.
 class SYNC_EXPORT_PRIVATE HttpBridge
     : public base::RefCountedThreadSafe<HttpBridge>,
       public HttpPostProviderInterface,
       public net::URLFetcherDelegate {
@@ skipping 168 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_