[Offline Pages] Remove need for OfflinePolicy when constructing an Offliner.

chrome/browser/android/offline_pages/prerendering_offliner.h

Index: chrome/browser/android/offline_pages/prerendering_offliner.h
diff --git a/chrome/browser/android/offline_pages/prerendering_offliner.h b/chrome/browser/android/offline_pages/prerendering_offliner.h
index 45eca74c5270792822dd410b0433ee1ee0b222e6..5bad58c0febaf544ef2efde6a26211c95ae078b0 100644
--- a/chrome/browser/android/offline_pages/prerendering_offliner.h
+++ b/chrome/browser/android/offline_pages/prerendering_offliner.h
@@ -21,15 +21,12 @@ class WebContents;
 
 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. Only one request may be active at a time.
 class PrerenderingOffliner : public Offliner {
  public:
   PrerenderingOffliner(content::BrowserContext* browser_context,
-                       const OfflinerPolicy* policy,
                        OfflinePageModel* offline_page_model);
   ~PrerenderingOffliner() override;