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

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 21c20c9fa3cb30f9d94e39ee60cda8f577ca6f4b..2f5bb7a2260b3a96a89ca1097b7ec1fcbd0550fc 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1687,7 +1687,7 @@ void RenderProcessHostImpl::OnShutdownRequest() {
   // 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