drive: Change DriveServiceInterface::GetChangeList's callback type to ChangeListCallback

chrome/browser/sync_file_system/drive_backend_v1/api_util.cc

Index: chrome/browser/sync_file_system/drive_backend_v1/api_util.cc
diff --git a/chrome/browser/sync_file_system/drive_backend_v1/api_util.cc b/chrome/browser/sync_file_system/drive_backend_v1/api_util.cc
index 2ec97916a6e6f3e8c90b9a0086911247933e6734..62c579fea10cff34a81638eb366603a06396cefd 100644
--- a/chrome/browser/sync_file_system/drive_backend_v1/api_util.cc
+++ b/chrome/browser/sync_file_system/drive_backend_v1/api_util.cc
@@ -480,7 +480,7 @@ void APIUtil::ListChanges(int64 start_changestamp,
 
   drive_service_->GetChangeList(
       start_changestamp,
-      base::Bind(&APIUtil::DidGetResourceList, AsWeakPtr(), callback));
+      base::Bind(&APIUtil::DidGetChangeList, AsWeakPtr(), callback));
 }
 
 void APIUtil::ContinueListing(const GURL& next_link,
@@ -675,6 +675,24 @@ void APIUtil::OnConnectionTypeChanged(
   CancelAllUploads(google_apis::GDATA_NO_CONNECTION);
 }
 
+void APIUtil::DidGetChangeList(
+    const ResourceListCallback& callback,
+    google_apis::GDataErrorCode error,
+    scoped_ptr<google_apis::ChangeList> change_list) {
+  DCHECK(CalledOnValidThread());
+
+  if (error != google_apis::HTTP_SUCCESS) {
+    DVLOG(2) << "Error on listing changes: " << error;
+    callback.Run(error, scoped_ptr<google_apis::ResourceList>());
+    return;
+  }
+
+  DVLOG(2) << "Got change list";
+  DCHECK(change_list);
+  callback.Run(error,
+               drive::util::ConvertChangeListToResourceList(*change_list));
+}
+
 void APIUtil::DidGetResourceList(
     const ResourceListCallback& callback,
     google_apis::GDataErrorCode error,