Don't display the file select dialog from invisible windows....

chrome/renderer/render_view.cc

Index: chrome/renderer/render_view.cc
===================================================================
--- chrome/renderer/render_view.cc	(revision 62133)
+++ chrome/renderer/render_view.cc	(working copy)
@@ -2019,6 +2019,9 @@
 bool RenderView::runFileChooser(
     const WebKit::WebFileChooserParams& params,
     WebFileChooserCompletion* chooser_completion) {
+  // Do not open the file dialog in a hidden RenderView.
+  if (is_hidden())
+    return false;
   ViewHostMsg_RunFileChooser_Params ipc_params;
   if (params.directory)
     ipc_params.mode = ViewHostMsg_RunFileChooser_Params::OpenFolder;