Move RenderViewHost swap out state to RenderFrameHost.

content/browser/frame_host/frame_tree.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/frame_tree.h"
 
 #include <queue>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 219 matching lines @@
 
 RenderViewHostImpl* FrameTree::CreateRenderViewHost(SiteInstance* site_instance,
                                                     int routing_id,
                                                     int main_frame_routing_id,
                                                     bool swapped_out,
                                                     bool hidden) {
   DCHECK(main_frame_routing_id != MSG_ROUTING_NONE);
   RenderViewHostMap::iterator iter =
       render_view_host_map_.find(site_instance->GetId());
   if (iter != render_view_host_map_.end()) {
-    // If a RenderViewHost is pending shutdown for this |site_instance|, put it
-    // in the map of RenderViewHosts pending shutdown. Otherwise return the
-    // existing RenderViewHost for the SiteInstance.
-    if (iter->second->rvh_state() ==
-        RenderViewHostImpl::STATE_PENDING_SHUTDOWN) {
+    // If a RenderViewHost's main frame is pending shutdown for this
+    // |site_instance|, put it in the map of RenderViewHosts pending shutdown.
+    // Otherwise return the existing RenderViewHost for the SiteInstance.
+    RenderFrameHost* main_frame = iter->second->GetMainFrame();
+    if (static_cast<RenderFrameHostImpl*>(main_frame)->rfh_state() ==
+        RenderFrameHostImpl::STATE_PENDING_SHUTDOWN) {
       render_view_host_pending_shutdown_map_.insert(
           std::pair<int, RenderViewHostImpl*>(site_instance->GetId(),
                                               iter->second));
       render_view_host_map_.erase(iter);
     } else {
       return iter->second;
     }
   }
   RenderViewHostImpl* rvh = static_cast<RenderViewHostImpl*>(
       RenderViewHostFactory::Create(site_instance,
@@ skipping 67 matching lines @@
         rvh->Shutdown();
         render_view_host_pending_shutdown_map_.erase(multi_iter);
       }
       break;
     }
     CHECK(render_view_host_found);
   }
 }
 
 }  // namespace content