Update Background Fetch IDLs following spec changes

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp

Index: third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp
diff --git a/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp b/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp
deleted file mode 100644
index 7bc6f24a193b026137aaf185dc5d5942acf3b286..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2017 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 "modules/background_fetch/BackgroundFetchSettledRequest.h"
-
-#include "modules/fetch/Response.h"
-
-namespace blink {
-
-BackgroundFetchSettledRequest::BackgroundFetchSettledRequest(Request* request,
-                                                             Response* response)
-    : BackgroundFetchRequest(request), m_response(response) {}
-
-Response* BackgroundFetchSettledRequest::response() const {
-  return m_response;
-}
-
-DEFINE_TRACE(BackgroundFetchSettledRequest) {
-  visitor->trace(m_response);
-  BackgroundFetchRequest::trace(visitor);
-}
-
-}  // namespace blink