Disable No-State prefetch for offline origins.

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 <memory>
@@ skipping 199 matching lines @@
   // Must not be called for prefetch loads (which are never rendered anyway).
   // |is_no_store| must be true if the main resource has a "no-store" cache
   // control HTTP header.
   void RecordFirstContentfulPaint(const GURL& url,
                                   bool is_no_store,
                                   base::TimeDelta time);
 
   static PrerenderManagerMode GetMode();
   static void SetMode(PrerenderManagerMode mode);
   static bool IsPrerenderingPossible();
-  static bool IsNoStatePrefetch();
-  static bool IsSimpleLoadExperiment();
+  static bool IsNoStatePrefetch(Origin origin);
+  static bool IsSimpleLoadExperiment(Origin origin);
 
   // Query the list of current prerender pages to see if the given web contents
   // is prerendering a page. The optional parameter |origin| is an output
   // parameter which, if a prerender is found, is set to the Origin of the
   // prerender |web_contents|.
   bool IsWebContentsPrerendering(const content::WebContents* web_contents,
                                  Origin* origin) const;
 
   // Whether the PrerenderManager has an active prerender with the given url and
   // SessionStorageNamespace associated with the given WebContents.
@@ skipping 366 matching lines @@
   std::unique_ptr<base::TickClock> tick_clock_;
 
   base::WeakPtrFactory<PrerenderManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderManager);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_MANAGER_H_