[Sync] Have SyncableService's take ownership of their SyncChangeProcessor.

chrome/browser/extensions/test_extension_service.cc

Index: chrome/browser/extensions/test_extension_service.cc
diff --git a/chrome/browser/extensions/test_extension_service.cc b/chrome/browser/extensions/test_extension_service.cc
index bae327809033ebf84f2257cd9011fb6bb16c7a4b..f5fdf10cd314aae99291b606d71722128df91b4a 100644
--- a/chrome/browser/extensions/test_extension_service.cc
+++ b/chrome/browser/extensions/test_extension_service.cc
@@ -68,7 +68,7 @@ void TestExtensionService::CheckForUpdatesSoon() {
 SyncError TestExtensionService::MergeDataAndStartSyncing(
     syncable::ModelType type,
     const SyncDataList& initial_sync_data,
-    SyncChangeProcessor* sync_processor) {
+    scoped_ptr<SyncChangeProcessor> sync_processor) {
   ADD_FAILURE();
   return SyncError();
 }