Split Android-specific dependency from BackgroundLoaderOffliner. Create a subfolder of c/b/offline_…

chrome/browser/offline_pages/android/load_termination_listener_impl.h

Index: chrome/browser/offline_pages/android/load_termination_listener_impl.h
diff --git a/chrome/browser/offline_pages/android/load_termination_listener_impl.h b/chrome/browser/offline_pages/android/load_termination_listener_impl.h
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index 0000000000000000000000000000000000000000..47168f729e6e77ffdfb094737a30d77a725fdf6e
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+++ b/chrome/browser/offline_pages/android/load_termination_listener_impl.h
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+// 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.
+
+#ifndef CHROME_BROWSER_OFFLINE_PAGES_ANDROID_LOAD_TERMINATION_LISTENER_IMPL_H_
+#define CHROME_BROWSER_OFFLINE_PAGES_ANDROID_LOAD_TERMINATION_LISTENER_IMPL_H_
+
+#include "base/android/application_status_listener.h"
+#include "components/offline_pages/core/background/load_termination_listener.h"
+
+namespace offline_pages {
+
+// Implementation of LoadTerminationListener for Android.
+class LoadTerminationListenerImpl : public LoadTerminationListener {
+ public:
+  LoadTerminationListenerImpl();
+  ~LoadTerminationListenerImpl() override;
+
+  // Callback
+  void OnApplicationStateChange(
+      base::android::ApplicationState application_state);
+
+ private:
+  // An instance of Android AppListener.
+  std::unique_ptr<base::android::ApplicationStatusListener> app_listener_;
+
+  base::WeakPtrFactory<LoadTerminationListenerImpl> weak_ptr_factory_;
+  DISALLOW_COPY_AND_ASSIGN(LoadTerminationListenerImpl);
+};
+
+}  // namespace offline_pages
+
+#endif  // CHROME_BROWSER_OFFLINE_PAGES_ANDROID_LOAD_TERMINATION_LISTENER_IMPL_H_