From 10fb778c7b993102bffb3bc37a7ce5afaf1b10d3 Mon Sep 17 00:00:00 2001
From: "roc+@cs.cmu.edu" <roc+@cs.cmu.edu>
Date: Sat, 22 Dec 2007 00:56:57 -0800
Subject: [PATCH] Bug 409337. Discard invalidation requests made by hidden
 plugins. r=josh,sr=jst,a=beltzner

---
 layout/generic/nsObjectFrame.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/layout/generic/nsObjectFrame.cpp b/layout/generic/nsObjectFrame.cpp
index 527834df4aaa..e6d51790698b 100644
--- a/layout/generic/nsObjectFrame.cpp
+++ b/layout/generic/nsObjectFrame.cpp
@@ -2024,7 +2024,7 @@ NS_IMETHODIMP nsPluginInstanceOwner::InvalidateRect(nsPluginRect *invalidRect)
 {
   nsresult rv = NS_ERROR_FAILURE;
 
-  if (mOwner && invalidRect) {
+  if (mOwner && invalidRect && mWidgetVisible) {
     //no reference count on view
     nsIView* view = mOwner->GetView();