sync: Add GetAllSyncData to sync/api

chrome/browser/sync/glue/shared_change_processor_ref.cc

Index: chrome/browser/sync/glue/shared_change_processor_ref.cc
diff --git a/chrome/browser/sync/glue/shared_change_processor_ref.cc b/chrome/browser/sync/glue/shared_change_processor_ref.cc
index 12dc2cd075ebe69730009b96333ca4402fede5fc..366bb4ecc1087f9e43e49f513d799f147fbd691c 100644
--- a/chrome/browser/sync/glue/shared_change_processor_ref.cc
+++ b/chrome/browser/sync/glue/shared_change_processor_ref.cc
@@ -20,6 +20,11 @@ syncer::SyncError SharedChangeProcessorRef::ProcessSyncChanges(
   return change_processor_->ProcessSyncChanges(from_here, change_list);
 }
 
+syncer::SyncDataList SharedChangeProcessorRef::GetAllSyncData(
+    syncer::ModelType type) const {
+  return change_processor_->GetAllSyncData(type);
+}
+
 syncer::SyncError SharedChangeProcessorRef::CreateAndUploadError(
     const tracked_objects::Location& from_here,
     const std::string& message) {