Windowed plugins like Flash would cause the hung plugin dialog to show up whe...

chrome/browser/renderer_host/render_widget_helper.h

Index: chrome/browser/renderer_host/render_widget_helper.h
===================================================================
--- chrome/browser/renderer_host/render_widget_helper.h	(revision 20235)
+++ chrome/browser/renderer_host/render_widget_helper.h	(working copy)
@@ -138,6 +138,12 @@
   void FreeTransportDIB(TransportDIB::Id dib_id);
 #endif
 
+  // Helper functions to signal and reset the modal dialog event, used to
+  // signal the renderer that it needs to pump messages while waiting for
+  // sync calls to return. These functions proxy the request to the UI thread.
+  void SignalModalDialogEvent(int routing_id);
+  void ResetModalDialogEvent(int routing_id);
+
  private:
   // A class used to proxy a paint message.  PaintMsgProxy objects are created
   // on the IO thread and destroyed on the UI thread.
@@ -181,6 +187,9 @@
   std::map<TransportDIB::Id, int> allocated_dibs_;
 #endif
 
+  void SignalModalDialogEventOnUI(int routing_id);
+  void ResetModalDialogEventOnUI(int routing_id);
+
   // A map of live paint messages.  Must hold pending_paints_lock_ to access.
   // The PaintMsgProxy objects are not owned by this map.  (See PaintMsgProxy
   // for details about how the lifetime of instances are managed.)