Substitute ResourceHandlers with dummy ResourceHandler while request is transferred

content/browser/renderer_host/resource_dispatcher_host.cc

Index: content/browser/renderer_host/resource_dispatcher_host.cc
diff --git a/content/browser/renderer_host/resource_dispatcher_host.cc b/content/browser/renderer_host/resource_dispatcher_host.cc
index a210f8de897aaa3ebe2ecf5aab43b8d48fb63a88..f4b6015caa2917d2e718556ce5a69db6c3951264 100644
--- a/content/browser/renderer_host/resource_dispatcher_host.cc
+++ b/content/browser/renderer_host/resource_dispatcher_host.cc
@@ -35,6 +35,7 @@
 #include "content/browser/renderer_host/async_resource_handler.h"
 #include "content/browser/renderer_host/buffered_resource_handler.h"
 #include "content/browser/renderer_host/cross_site_resource_handler.h"
+#include "content/browser/renderer_host/paused_resource_handler.h"
 #include "content/browser/renderer_host/redirect_to_file_resource_handler.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
@@ -2245,8 +2246,19 @@ void ResourceDispatcherHost::set_allow_cross_origin_auth_prompt(bool value) {
 
 void ResourceDispatcherHost::MarkAsTransferredNavigation(
     const GlobalRequestID& transferred_request_id,
-    net::URLRequest* ransferred_request) {
-  transferred_navigations_[transferred_request_id] = ransferred_request;
+    net::URLRequest* transferred_request) {
+  transferred_navigations_[transferred_request_id] = transferred_request;
+
+  // If a URLRequest is transferred to a new RenderViewHost, its
+  // ResourceHandlers should not receive any notifications because they may
+  // depend on the state of the old RVH. We set a ResourceHandler that allows
+  // canceling requests, because on shutdown of the RDH all pending requests are
+  // canceled. The RVH of requests that are being transferred may be gone by
+  // that time.
+  ResourceDispatcherHostRequestInfo* info = InfoForRequest(transferred_request);
+  scoped_refptr<ResourceHandler> paused_resource_handler(
+      new PausedResourceHandler(info->resource_handler()));
+  info->set_resource_handler(paused_resource_handler.get());
 }
 
 bool ResourceDispatcherHost::IsTransferredNavigation(