[DRAFT] Create RenderFrameHostManager.

content/browser/loader/cross_site_resource_handler.cc

Index: content/browser/loader/cross_site_resource_handler.cc
diff --git a/content/browser/loader/cross_site_resource_handler.cc b/content/browser/loader/cross_site_resource_handler.cc
index 8fb1c410bdccd935a147e33ffef68b4bd347a55e..9c22c0815a47e3f43d1b24f645d6b7ad1f73e719 100644
--- a/content/browser/loader/cross_site_resource_handler.cc
+++ b/content/browser/loader/cross_site_resource_handler.cc
@@ -127,10 +127,13 @@ bool CrossSiteResourceHandler::OnResponseStarted(
   // cross-site subframe navigations.
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSitePerProcess)) {
     GURL referrer(request()->referrer());
-    // We skip this for WebUI processes for now, since pages like the NTP host
-    // cross-site WebUI iframes but don't have referrers.
+    // We skip this for WebUI and NTP processes for now, since pages like
+    // Settings and the NTP host cross-site WebUI iframes but don't have
+    // referrers.  (Note: the NTP is not WebUI anymore.)
     bool is_webui_process = ChildProcessSecurityPolicyImpl::GetInstance()->
-        HasWebUIBindings(info->GetChildID());
+        HasWebUIBindings(info->GetChildID()) ||
+        request()->url().SchemeIs(chrome::kChromeUIScheme) ||
+        request()->url().SchemeIs("chrome-search");
 
     // TODO(creis): This shouldn't rely on the referrer to determine the parent
     // frame's URL.  This also doesn't work for hosted apps, due to passing NULL
@@ -140,6 +143,8 @@ bool CrossSiteResourceHandler::OnResponseStarted(
     if (info->GetResourceType() == ResourceType::SUB_FRAME &&
         !is_webui_process &&
         !SiteInstance::IsSameWebSite(NULL, request()->url(), referrer)) {
+      LOG(INFO) << "CSRH: Transferring for a cross-process subframe: " <<
+          request()->url();
       should_transfer = true;
     }
   }