Async Safe Browsing check, on mobile

chrome/browser/renderer_host/safe_browsing_resource_throttle_factory.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_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_FACTORY_H_
 #define CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_FACTORY_H_
 
 #include "base/basictypes.h"
 #include "content/public/common/resource_type.h"
 
@@ skipping 12 matching lines @@
 // registered, the factory's CreateResourceThrottle() is called.  Otherwise,
 // if SAFE_BROWSING_DB_LOCAL || SAFE_BROWSING_DB_REMOTE is enabled, a new
 // SafeBrowsingResourceThrottle is returned, or NULL if only
 // SAFE_BROWSING_SERVICE is enabled.
 class SafeBrowsingResourceThrottleFactory {
  public:
   // Registers a factory. Does not take the ownership of the factory. The
   // caller has to make sure the factory stays alive and properly destroyed.
   static void RegisterFactory(SafeBrowsingResourceThrottleFactory* factory);
 
-  // Creates a new resource throttle for safe browsing
+  // Creates a new resource throttle for safe browsing, using the factory
+  // if there is one registered.
   static content::ResourceThrottle* Create(
       net::URLRequest* request,
       content::ResourceContext* resource_context,
       content::ResourceType resource_type,
       SafeBrowsingService* service);
 
+  // Like above, but bypass the registered factory and create a true
+  // SafeBrowsingResourceThrottle.
+  static content::ResourceThrottle* CreateWithoutRegisteredFactory(
+      net::URLRequest* request,
+      content::ResourceType resource_type,
+      SafeBrowsingService* service);
+
  protected:
   SafeBrowsingResourceThrottleFactory() { }
   virtual ~SafeBrowsingResourceThrottleFactory() { }
 
   virtual content::ResourceThrottle* CreateResourceThrottle(
       net::URLRequest* request,
       content::ResourceContext* resource_context,
       content::ResourceType resource_type,
       SafeBrowsingService* service) = 0;
 
  private:
   static SafeBrowsingResourceThrottleFactory* factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingResourceThrottleFactory);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_SAFE_BROWSING_RESOURCE_THROTTLE_FACTORY_H_