Move all components/offline_pages/ files into component/offline_pages/core

components/offline_pages/background/offliner_stub.cc

-// Copyright 2016 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 "components/offline_pages/background/offliner_stub.h"
-
-#include "base/bind.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "components/offline_pages/background/save_page_request.h"
-
-namespace offline_pages {
-
-OfflinerStub::OfflinerStub()
-    : disable_loading_(false), enable_callback_(false), cancel_called_(false) {}
-
-OfflinerStub::~OfflinerStub() {}
-
-bool OfflinerStub::LoadAndSave(const SavePageRequest& request,
-                               const CompletionCallback& callback) {
-  if (disable_loading_)
-    return false;
-
-  callback_ = callback;
-
-  // Post the callback on the run loop.
-  if (enable_callback_) {
-    base::ThreadTaskRunnerHandle::Get()->PostTask(
-        FROM_HERE,
-        base::Bind(callback, request, Offliner::RequestStatus::SAVED));
-  }
-  return true;
-}
-
-void OfflinerStub::Cancel() {
-  cancel_called_ = true;
-}
-
-}  // namespace offline_pages