Remove swapped out state from RenderFrameHost.

content/browser/frame_host/navigator_impl.cc

 // Copyright 2013 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/frame_host/navigator_impl.h"
 
 #include <utility>
 
 #include "base/metrics/histogram.h"
 #include "base/time/time.h"
@@ skipping 597 matching lines @@
                                    const GURL& url,
                                    SiteInstance* source_site_instance,
                                    const Referrer& referrer,
                                    WindowOpenDisposition disposition,
                                    bool should_replace_current_entry,
                                    bool user_gesture) {
   // This call only makes sense for subframes if OOPIFs are possible.
   DCHECK(!render_frame_host->GetParent() ||
          SiteIsolationPolicy::AreCrossProcessFramesPossible());
 
-  // If this came from a swapped out RenderFrameHost, we only allow the request
-  // if we are still in the same BrowsingInstance.
   SiteInstance* current_site_instance = render_frame_host->frame_tree_node()
                                             ->current_frame_host()
                                             ->GetSiteInstance();
-  if (render_frame_host->is_swapped_out() &&
-      !render_frame_host->GetSiteInstance()->IsRelatedSiteInstance(
-          current_site_instance)) {
-    return;
-  }
 
   // TODO(creis): Pass the redirect_chain into this method to support client
   // redirects.  http://crbug.com/311721.
   std::vector<GURL> redirect_chain;
 
   GURL dest_url(url);
   if (!GetContentClient()->browser()->ShouldAllowOpenURL(
           current_site_instance, url)) {
     dest_url = GURL(url::kAboutBlankURL);
   }
@@ skipping 493 matching lines @@
   if (pending_entry != controller_->GetVisibleEntry() ||
       !should_preserve_entry) {
     controller_->DiscardPendingEntry(true);
 
     // Also force the UI to refresh.
     controller_->delegate()->NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
   }
 }
 
 }  // namespace content