[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 1267137cd6ef55e3656feae3251a7a5c37d497d8..d7c960102728d69e361a30e9d97d6481c1596cbd 100644
--- a/content/browser/loader/cross_site_resource_handler.cc
+++ b/content/browser/loader/cross_site_resource_handler.cc
@@ -18,6 +18,7 @@
 #include "content/public/browser/global_request_id.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/common/resource_response.h"
+#include "content/public/common/url_constants.h"
 #include "net/http/http_response_headers.h"
 #include "net/url_request/url_request.h"
 
@@ -34,14 +35,9 @@ void OnCrossSiteResponseHelper(int render_view_id,
                                int64 frame_id) {
   RenderViewHostImpl* rvh =
       RenderViewHostImpl::FromID(global_request_id.child_id, render_view_id);
-  if (!rvh)
-    return;
-  RenderViewHostDelegate* delegate = rvh->GetDelegate();
-  if (!delegate || !delegate->GetRendererManagementDelegate())
-    return;
-
-  delegate->GetRendererManagementDelegate()->OnCrossSiteResponse(
-      rvh, global_request_id, is_transfer, transfer_url_chain, referrer,
+
+  rvh->OnCrossSiteResponse(
+      global_request_id, is_transfer, transfer_url_chain, referrer,
       page_transition, frame_id);
 }
 
@@ -95,6 +91,15 @@ bool CrossSiteResourceHandler::OnResponseStarted(
   bool should_transfer =
       GetContentClient()->browser()->ShouldSwapProcessesForRedirect(
           info->GetContext(), request()->original_url(), request()->url());
+  // TODO(creis): Always do this.
+  if (info->GetResourceType() == ResourceType::SUB_FRAME &&
+      !request()->url().SchemeIs(chrome::kChromeUIScheme) &&
+      !SiteInstance::IsSameWebSite(NULL, request()->url(),
+          GURL(request()->referrer()))) {
+    LOG(INFO) << "CSRH: Transferring for a cross-process subframe.";
+    should_transfer = true;
+  }
+
   bool swap_needed = should_transfer ||
       CrossSiteRequestManager::GetInstance()->
           HasPendingCrossSiteRequest(info->GetChildID(), info->GetRouteID());