Refactor FileSystemMountPointProvider::CreateFileStream{Reader,Writer}

webkit/fileapi/test_mount_point_provider.cc

Index: webkit/fileapi/test_mount_point_provider.cc
diff --git a/webkit/fileapi/test_mount_point_provider.cc b/webkit/fileapi/test_mount_point_provider.cc
index 5599c983ceff08f8b16991792a37c894d0a4d94e..e828f8f531b8f5980b7bc2811bdc4f5942b1c13c 100644
--- a/webkit/fileapi/test_mount_point_provider.cc
+++ b/webkit/fileapi/test_mount_point_provider.cc
@@ -140,20 +140,24 @@ FileSystemOperation* TestMountPointProvider::CreateFileSystemOperation(
   return new LocalFileSystemOperation(context, operation_context.Pass());
 }
 
-webkit_blob::FileStreamReader* TestMountPointProvider::CreateFileStreamReader(
+scoped_ptr<webkit_blob::FileStreamReader>
+TestMountPointProvider::CreateFileStreamReader(
     const FileSystemURL& url,
     int64 offset,
     const base::Time& expected_modification_time,
     FileSystemContext* context) const {
-  return new FileSystemFileStreamReader(
-      context, url, offset, expected_modification_time);
+  return scoped_ptr<webkit_blob::FileStreamReader>(
+      new FileSystemFileStreamReader(
+          context, url, offset, expected_modification_time));
 }
 
-fileapi::FileStreamWriter* TestMountPointProvider::CreateFileStreamWriter(
+scoped_ptr<fileapi::FileStreamWriter>
+TestMountPointProvider::CreateFileStreamWriter(
     const FileSystemURL& url,
     int64 offset,
     FileSystemContext* context) const {
-  return new SandboxFileStreamWriter(context, url, offset, observers_);
+  return scoped_ptr<fileapi::FileStreamWriter>(
+      new SandboxFileStreamWriter(context, url, offset, observers_));
 }
 
 FileSystemQuotaUtil* TestMountPointProvider::GetQuotaUtil() {