Fix http://crbug.com/87176, and write a browsertest for it.

content/browser/renderer_host/render_process_host_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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1669 matching lines @@
       &GpuMessageFilter::EndFrameSubscription,
       gpu_message_filter_,
       route_id));
 }
 
 void RenderProcessHostImpl::OnShutdownRequest() {
   // Don't shut down if there are more active RenderViews than the one asking
   // to close, or if there are pending RenderViews being swapped back in.
   // In single process mode, we never shutdown the renderer.
   int num_active_views = GetActiveViewCount();
-  if (pending_views_ || num_active_views > 1 || run_renderer_in_process())
+  if (pending_views_ || num_active_views > 0 || run_renderer_in_process())
     return;
 
   // Notify any contents that might have swapped out renderers from this
   // process. They should not attempt to swap them back in.
   NotificationService::current()->Notify(
       NOTIFICATION_RENDERER_PROCESS_CLOSING,
       Source<RenderProcessHost>(this),
       NotificationService::NoDetails());
 
   Send(new ChildProcessMsg_Shutdown());
@@ skipping 94 matching lines @@
       continue;
 
     RenderViewHost* rvh =
         RenderViewHost::From(const_cast<RenderWidgetHost*>(widget));
 
     rvh->UpdateWebkitPreferences(rvh->GetWebkitPreferences());
   }
 }
 
 }  // namespace content