Implement PrerenderManager::AddPrerenderForOffline()

chrome/browser/prerender/prerender_manager.h

 // Copyright (c) 2012 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_PRERENDER_PRERENDER_MANAGER_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_
 
 #include <stdint.h>
 
 #include <list>
@@ skipping 133 matching lines @@
 
   // Adds a prerender for Instant Search |url| if valid. The
   // |session_storage_namespace| matches the namespace of the active tab at the
   // time the prerender is generated. Returns a caller-owned PrerenderHandle* or
   // NULL.
   PrerenderHandle* AddPrerenderForInstant(
       const GURL& url,
       content::SessionStorageNamespace* session_storage_namespace,
       const gfx::Size& size);
 
+  // Adds a prerender for offline page loader that will prerender even on
+  // cellular networks as long as the user setting for prerendering is ON.

[pasko, 2016/04/04 17:04:22]

The last part is no longer true?

[gabadie, 2016/04/04 19:42:50]

Good point. Done.

+  PrerenderHandle* AddPrerenderForOffline(
+      const GURL& url,
+      content::SessionStorageNamespace* session_storage_namespace,
+      const gfx::Size& size);
+
   // Cancels all active prerenders.
   void CancelAllPrerenders();
 
   // If |url| matches a valid prerendered page and |params| are compatible, try
   // to swap it and merge browsing histories. Returns |true| and updates
   // |params->target_contents| if a prerendered page is swapped in, |false|
   // otherwise.
   bool MaybeUsePrerenderedPage(const GURL& url,
                                chrome::NavigateParams* params);
 
@@ skipping 397 matching lines @@
   // Set of process hosts being prerendered.
   typedef std::set<content::RenderProcessHost*> PrerenderProcessSet;
   PrerenderProcessSet prerender_process_hosts_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_