Allow sending frame tree updates for frames being added, even while loading.

content/renderer/render_view_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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 2618 matching lines @@
   return new RendererWebApplicationCacheHostImpl(
       FromWebView(frame->view()), client,
       RenderThreadImpl::current()->appcache_dispatcher()->backend_proxy());
 }
 
 WebCookieJar* RenderViewImpl::cookieJar(WebFrame* frame) {
   return &cookie_jar_;
 }
 
 void RenderViewImpl::didCreateFrame(WebFrame* parent, WebFrame* child) {
-  if (is_loading_) {
-    pending_frame_tree_update_ = true;
-    return;
-  }
   if (!updating_frame_tree_)
     SendUpdatedFrameTree(NULL);
 }
 
 void RenderViewImpl::frameDetached(WebFrame* frame) {
   if (is_loading_) {
     pending_frame_tree_update_ = true;
     // Make sure observers are notified, even if we return right away.
     FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameDetached(frame));
     return;
@@ skipping 3635 matching lines @@
 
   updating_frame_tree_ = true;
   active_frame_id_map_.clear();
 
   target_process_id_ = process_id;
   target_routing_id_ = route_id;
   CreateFrameTree(webview()->mainFrame(), frames);
 
   updating_frame_tree_ = false;
 }