Prerender: Disable prefetch if there's an appcache.

content/browser/appcache/appcache_interceptor.cc

 // Copyright 2014 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.
 
 #include "content/browser/appcache/appcache_interceptor.h"
 
 #include "base/debug/crash_logging.h"
 #include "content/browser/appcache/appcache_backend_impl.h"
 #include "content/browser/appcache/appcache_host.h"
 #include "content/browser/appcache/appcache_request_handler.h"
 #include "content/browser/appcache/appcache_service_impl.h"
 #include "content/browser/appcache/appcache_url_request_job.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/bad_message.h"
 #include "content/browser/loader/resource_message_filter.h"
 #include "content/browser/loader/resource_requester_info.h"
 #include "content/common/appcache_interfaces.h"
 #include "net/url_request/url_request.h"
 
 static int kHandlerKey;  // Value is not used.
 
 namespace content {
 
 void AppCacheInterceptor::SetHandler(net::URLRequest* request,
                                      AppCacheRequestHandler* handler) {
   request->SetUserData(&kHandlerKey, handler);  // request takes ownership
 }
 
 AppCacheRequestHandler* AppCacheInterceptor::GetHandler(
-    net::URLRequest* request) {
+    const net::URLRequest* request) {
   return static_cast<AppCacheRequestHandler*>(
       request->GetUserData(&kHandlerKey));
 }
 
 void AppCacheInterceptor::SetExtraRequestInfo(net::URLRequest* request,
                                               AppCacheServiceImpl* service,
                                               int process_id,
                                               int host_id,
                                               ResourceType resource_type,
                                               bool should_reset_appcache) {
@@ skipping 113 matching lines @@
 
 net::URLRequestJob* AppCacheInterceptor::MaybeInterceptResponse(
     net::URLRequest* request, net::NetworkDelegate* network_delegate) const {
   AppCacheRequestHandler* handler = GetHandler(request);
   if (!handler)
     return NULL;
   return handler->MaybeLoadFallbackForResponse(request, network_delegate);
 }
 
 }  // namespace content