[SyncFS] Add RemoteToLocalSyncer skeleton

chrome/browser/sync_file_system/drive_backend/sync_engine.cc

Index: chrome/browser/sync_file_system/drive_backend/sync_engine.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/sync_engine.cc b/chrome/browser/sync_file_system/drive_backend/sync_engine.cc
index c857e96b8e017e54526642dd6d621ef8745d9966..362e9fcf104f859fa7db13c5a20f085b342ddcb6 100644
--- a/chrome/browser/sync_file_system/drive_backend/sync_engine.cc
+++ b/chrome/browser/sync_file_system/drive_backend/sync_engine.cc
@@ -119,7 +119,8 @@ void SyncEngine::UninstallOrigin(
 
 void SyncEngine::ProcessRemoteChange(
     const SyncFileCallback& callback) {
-  RemoteToLocalSyncer* syncer = new RemoteToLocalSyncer;
+  RemoteToLocalSyncer* syncer = new RemoteToLocalSyncer(
+      this, RemoteToLocalSyncer::PRIORITY_NORMAL);

[kinuko, 2013/11/05 13:36:13]

When do we use PRIORITY_LOW?

[tzik, 2013/11/06 04:56:08]

Added a comment to RemoteToLocalSyncer.
I'll mark conflicting tracker as priority low, to handle it later.

   task_manager_->ScheduleSyncTask(
       scoped_ptr<SyncTask>(syncer),
       base::Bind(&SyncEngine::DidProcessRemoteChange,
@@ -201,7 +202,7 @@ void SyncEngine::ApplyLocalChange(
     const SyncFileMetadata& local_file_metadata,
     const fileapi::FileSystemURL& url,
     const SyncStatusCallback& callback) {
-  LocalToRemoteSyncer* syncer = new LocalToRemoteSyncer;
+  LocalToRemoteSyncer* syncer = new LocalToRemoteSyncer(this);
   task_manager_->ScheduleSyncTask(
       scoped_ptr<SyncTask>(syncer),
       base::Bind(&SyncEngine::DidApplyLocalChange,
@@ -269,6 +270,10 @@ MetadataDatabase* SyncEngine::GetMetadataDatabase() {
   return metadata_database_.get();
 }
 
+RemoteChangeProcessor* SyncEngine::GetRemoteChangeProcessor() {
+  return remote_change_processor_;
+}
+
 void SyncEngine::DoDisableApp(const std::string& app_id,
                               const SyncStatusCallback& callback) {
   NOTIMPLEMENTED();