[SyncFS] Add TaskLogger and wire up it.

chrome/browser/sync_file_system/remote_file_sync_service.h

Index: chrome/browser/sync_file_system/remote_file_sync_service.h
diff --git a/chrome/browser/sync_file_system/remote_file_sync_service.h b/chrome/browser/sync_file_system/remote_file_sync_service.h
index fb55e1192b2d54df29dd425cde0883f8d5b4754e..b3caf01dc569eef89140b84c1652fa2f97527905 100644
--- a/chrome/browser/sync_file_system/remote_file_sync_service.h
+++ b/chrome/browser/sync_file_system/remote_file_sync_service.h
@@ -37,6 +37,7 @@ namespace sync_file_system {
 class FileStatusObserver;
 class LocalChangeProcessor;
 class RemoteChangeProcessor;
+class TaskLogger;
 
 enum RemoteServiceState {
   // Remote service is up and running, or has not seen any errors yet.
@@ -130,7 +131,8 @@ class RemoteFileSyncService {
   // for |context|.
   static scoped_ptr<RemoteFileSyncService> CreateForBrowserContext(
       BackendVersion version,
-      content::BrowserContext* context);
+      content::BrowserContext* context,
+      TaskLogger* task_logger);
 
   // Returns BrowserContextKeyedServiceFactory's an instance of
   // RemoteFileSyncService for backend |version| depends on.