Add skeleton code to wire Local- and Remote- file sync services

chrome/browser/sync_file_system/sync_file_system_service.cc

 // 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.
 
 #include "chrome/browser/sync_file_system/sync_file_system_service.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 31 matching lines @@
 
   // TODO(kinuko,tzik): Instantiate the remote_file_service for the given
   // |service_name| if it hasn't been initialized.
 
   local_file_service_->MaybeInitializeFileSystemContext(
       app_url, file_system_context, callback);
 
   // TODO(tzik): Hook up remote service initialization code.
 }
 
+void SyncFileSystemService::OnLocalChangeAvailable(int64 pending_changes) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_GE(pending_changes, 0);
+  pending_local_changes_ = pending_changes;
+}
+
+void SyncFileSystemService::OnRemoteChangeAvailable(int64 pending_changes) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_GE(pending_changes, 0);
+  pending_remote_changes_ = pending_changes;
+}
+
 SyncFileSystemService::SyncFileSystemService(Profile* profile)
-    : profile_(profile) {}
+    : profile_(profile),
+      pending_local_changes_(0),
+      pending_remote_changes_(0) {}
 
 void SyncFileSystemService::Initialize(
     scoped_ptr<LocalFileSyncService> local_file_service) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(local_file_service.get());
   DCHECK(profile_);
 
   local_file_service_ = local_file_service.Pass();
 }
 
@@ skipping 25 matching lines @@
   // TODO(kinuko): Set up mock services if it is called for testing.
 
   scoped_ptr<LocalFileSyncService> local_file_service(
       new LocalFileSyncService);
 
   service->Initialize(local_file_service.Pass());
   return service;
 }
 
 }  // namespace chrome