Navigation transitions: Block first response until after transitions have run.

content/browser/frame_host/render_frame_host_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/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
@@ skipping 487 matching lines @@
     const std::vector<GURL>& transfer_url_chain,
     const Referrer& referrer,
     PageTransition page_transition,
     bool should_replace_current_entry) {
   frame_tree_node_->render_manager()->OnCrossSiteResponse(
       this, global_request_id, cross_site_transferring_request.Pass(),
       transfer_url_chain, referrer, page_transition,
       should_replace_current_entry);
 }
 
+void RenderFrameHostImpl::OnDeferredAfterResponseStarted(
+    const GlobalRequestID& global_request_id) {
+  frame_tree_node_->render_manager()->OnDeferredAfterResponseStarted(
+      global_request_id, this);
+
+  if (!GetParent())
+    delegate_->DidDeferAfterResponseStarted();
+}
+
 void RenderFrameHostImpl::SwapOut(RenderFrameProxyHost* proxy) {
   // TODO(creis): Move swapped out state to RFH.  Until then, only update it
   // when swapping out the main frame.
   if (!GetParent()) {
     // If this RenderViewHost is not in the default state, it must have already
     // gone through this, therefore just return.
     if (render_view_host_->rvh_state_ != RenderViewHostImpl::STATE_DEFAULT)
       return;
 
     render_view_host_->SetState(
@@ skipping 367 matching lines @@
   cancel_notification_callbacks_.erase(notification_id);
 }
 
 void RenderFrameHostImpl::DesktopNotificationPermissionRequestDone(
     int callback_context) {
   Send(new DesktopNotificationMsg_PermissionRequestDone(
       routing_id_, callback_context));
 }
 
 }  // namespace content