[Offline pages] Create offliner that uses background loader

components/offline_pages/content/background_loader/background_loader_contents_stub.h

Index: components/offline_pages/content/background_loader/background_loader_contents_stub.h
diff --git a/components/offline_pages/content/background_loader/background_loader_contents_stub.h b/components/offline_pages/content/background_loader/background_loader_contents_stub.h
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index 0000000000000000000000000000000000000000..0a0e41e2dc125052e60714c31ef3d9b4e9b7bb85
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+++ b/components/offline_pages/content/background_loader/background_loader_contents_stub.h
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+// 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.
+
+#ifndef COMPONENTS_OFFLINE_PAGES_CONTENT_BACKGROUND_LOADER_BACKGROUND_LOADER_CONTENTS_STUB_H_
+#define COMPONENTS_OFFLINE_PAGES_CONTENT_BACKGROUND_LOADER_BACKGROUND_LOADER_CONTENTS_STUB_H_
+
+#include "components/offline_pages/content/background_loader/background_loader_contents.h"
+
+namespace background_loader {
+
+// Stub BackgroundLoaderContents for testing use.
+class BackgroundLoaderContentsStub : public BackgroundLoaderContents {
+ public:
+  BackgroundLoaderContentsStub();
+  ~BackgroundLoaderContentsStub() override;
+
+  void LoadPage(const GURL& url) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BackgroundLoaderContentsStub);
+};
+
+} // namespace background_loader
+#endif // COMPONENTS_OFFLINE_PAGES_CONTENT_BACKGROUND_LOADER_BACKGROUND_LOADER_CONTENTS_STUB_H_