[SyncFS] Implement RemoteToLocalSyncer::GetRemoteResource

chrome/browser/sync_file_system/drive_backend/remote_to_local_syncer.cc

 // Copyright 2013 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/drive_backend/remote_to_local_syncer.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
+#include "chrome/browser/drive/drive_api_util.h"
+#include "chrome/browser/drive/drive_service_interface.h"
+#include "chrome/browser/google_apis/drive_api_parser.h"
+#include "chrome/browser/google_apis/gdata_wapi_parser.h"
 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.h"
 #include "chrome/browser/sync_file_system/drive_backend/sync_engine_context.h"
 
 namespace sync_file_system {
 namespace drive_backend {
 
 namespace {
 
 bool BuildFileSystemURLForTracker(
     MetadataDatabase* metadata_database,
@@ skipping 147 matching lines @@
   if (missing_parent_) {
     HandleReorganize(callback);
     return;
   }
 
   HandleOfflineSolvable(callback);
 }
 
 void RemoteToLocalSyncer::GetRemoteResource(
     const SyncStatusCallback& callback) {
-  // TODO(tzik): FileMetadata is missing, retrieve and store it to
-  // MetadataDatabase.
+  drive_service()->GetResourceEntry(
+      dirty_tracker_.file_id(),
+      base::Bind(&RemoteToLocalSyncer::DidGetRemoteResource,
+                 weak_ptr_factory_.GetWeakPtr(),
+                 callback,
+                 metadata_database()->GetLargestChangeID()));
+}
 
-  NOTIMPLEMENTED();
-  callback.Run(SYNC_STATUS_FAILED);
+void RemoteToLocalSyncer::DidGetRemoteResource(
+    const SyncStatusCallback& callback,
+    int64 change_id,
+    google_apis::GDataErrorCode error,
+    scoped_ptr<google_apis::ResourceEntry> entry) {
+  metadata_database()->UpdateByFileResource(
+      change_id,
+      *drive::util::ConvertResourceEntryToFileResource(*entry),
+      callback);
 }
 
 void RemoteToLocalSyncer::HandleDeletion(
     const SyncStatusCallback& callback) {
   NOTIMPLEMENTED();
   callback.Run(SYNC_STATUS_FAILED);
 }
 
 void RemoteToLocalSyncer::HandleNewFile(
     const SyncStatusCallback& callback) {
@@ skipping 59 matching lines @@
   return sync_context_->GetMetadataDatabase();
 }
 
 RemoteChangeProcessor* RemoteToLocalSyncer::remote_change_processor() {
   DCHECK(sync_context_->GetRemoteChangeProcessor());
   return sync_context_->GetRemoteChangeProcessor();
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system