Add skeletons for the factories to create the request coordinator and

chrome/browser/android/offline_pages/prerendering_offliner.h

 // 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 CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_
 
 #include "chrome/browser/android/offline_pages/prerendering_loader.h"
 #include "components/offline_pages/background/offliner.h"
 #include "components/offline_pages/offline_page_model.h"
 
 class PrerenderManager;
 
 namespace content {
 class WebContents;
 }  // namespace content
 
 namespace offline_pages {
 
+class OfflinerPolicy;
+
 // An Offliner implementation that attempts client-side rendering and saving
 // of an offline page. It uses the PrerenderingLoader to load the page and
 // the OfflinePageModel to save it.
 class PrerenderingOffliner : public Offliner {
  public:
-  PrerenderingOffliner(PrerenderManager* prerender_manager,
+  PrerenderingOffliner(const OfflinerPolicy* policy,
+                       PrerenderManager* prerender_manager,
                        OfflinePageModel* offline_page_model);
   ~PrerenderingOffliner() override;
 
   bool LoadAndSave(const SavePageRequest& request,
                    const CompletionCallback& callback) override;
 
   void Cancel() override;
 
  private:
   std::unique_ptr<PrerenderingLoader> loader_;
 };
 
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_PRERENDERING_OFFLINER_H_