Create swapped-out opener RVHs after a process swap.

content/browser/site_instance_impl.cc

 // 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.
 
 #include "content/browser/site_instance_impl.h"
 
 #include "base/command_line.h"
 #include "content/browser/browsing_instance.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
@@ skipping 124 matching lines @@
 }
 
 bool SiteInstanceImpl::HasRelatedSiteInstance(const GURL& url) {
   return browsing_instance_->HasSiteInstance(url);
 }
 
 SiteInstance* SiteInstanceImpl::GetRelatedSiteInstance(const GURL& url) {
   return browsing_instance_->GetSiteInstanceForURL(url);
 }
 
+bool SiteInstanceImpl::IsRelatedSiteInstance(const SiteInstance* instance) {
+  return browsing_instance_ ==
+      static_cast<const SiteInstanceImpl*>(instance)->browsing_instance_;
+}
+
 bool SiteInstanceImpl::HasWrongProcessForURL(const GURL& url) const {
   // Having no process isn't a problem, since we'll assign it correctly.
   if (!HasProcess())
     return false;
 
   // If the URL to navigate to can be associated with any site instance,
   // we want to keep it in the same process.
   if (IsURLSameAsAnySiteInstance(url))
     return false;
 
@@ skipping 108 matching lines @@
 
 void SiteInstanceImpl::LockToOrigin() {
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kEnableStrictSiteIsolation)) {
     ChildProcessSecurityPolicyImpl* policy =
         ChildProcessSecurityPolicyImpl::GetInstance();
     policy->LockToOrigin(process_->GetID(), site_);
   }
 }