PlzNavigate: AppCache support.

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"
@@ skipping 13 matching lines @@
                                      AppCacheRequestHandler* handler) {
   request->SetUserData(&kHandlerKey, handler);  // request takes ownership
 }
 
 AppCacheRequestHandler* AppCacheInterceptor::GetHandler(
     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) {
+void AppCacheInterceptor::SetExtraRequestInfo(net::URLRequest* request,
+                                              AppCacheServiceImpl* service,
+                                              int process_id,
+                                              int frame_id,
+                                              int host_id,
+                                              ResourceType resource_type,
+                                              bool should_reset_appcache) {
   if (!service || (host_id == kAppCacheNoHostId))
     return;
 
   AppCacheBackendImpl* backend = service->GetBackend(process_id);
-  if (!backend)
-    return;
+  if (!backend) {
+    backend = service->GetBackendForFrame(frame_id);
+    if (!backend)
+      return;
+  }
 
   // TODO(michaeln): An invalid host id is indicative of bad data
   // from a child process. How should we handle that here?
   AppCacheHost* host = backend->GetHost(host_id);
   if (!host)
     return;
 
   // Create a handler for this request and associate it with the request.
   AppCacheRequestHandler* handler =
       host->CreateRequestHandler(request, resource_type, should_reset_appcache);
@@ skipping 86 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