From 6d7278f503f059336bdcdd98ac25fd4358645465 Mon Sep 17 00:00:00 2001
From: Jim Mathies <jmathies@mozilla.com>
Date: Mon, 19 Jul 2010 16:47:41 -0500
Subject: [PATCH] Bug 574778 - Disable intrinsic sizing for chrome documents
 when enabling fullscreen mode. r=smaug.

---
 dom/base/nsGlobalWindow.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/dom/base/nsGlobalWindow.cpp b/dom/base/nsGlobalWindow.cpp
index e558f3312e..b7369e14f5 100644
--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@@ -175,6 +175,7 @@
 #include "nsNetUtil.h"
 #include "nsFocusManager.h"
 #include "nsIJSON.h"
+#include "nsIXULWindow.h"
 #ifdef MOZ_XUL
 #include "nsXULPopupManager.h"
 #include "nsIDOMXULControlElement.h"
@@ -3943,6 +3944,15 @@ nsGlobalWindow::SetFullScreen(PRBool aFullScreen)
     return NS_OK;
   }
 
+  // Prevent chrome documents which are still loading from resizing
+  // the window after we set fullscreen mode.
+  nsCOMPtr<nsIBaseWindow> treeOwnerAsWin;
+  GetTreeOwner(getter_AddRefs(treeOwnerAsWin));
+  nsCOMPtr<nsIXULWindow> xulWin(do_GetInterface(treeOwnerAsWin));
+  if (aFullScreen && xulWin) {
+    xulWin->SetIntrinsicallySized(PR_FALSE);
+  }
+
   nsCOMPtr<nsIWidget> widget = GetMainWidget();
   if (widget)
     widget->MakeFullScreen(aFullScreen);
-- 
2.11.4.GIT