From bd43511f7f1b5c21c5da44e5fc7d54c9a05ffdb3 Mon Sep 17 00:00:00 2001
From: vincentliu <vliu@mozilla.com>
Date: Thu, 13 Apr 2017 13:46:28 +0800
Subject: [PATCH] Bug 1343475 - Add labeling for Dispatch in
 PuppetWidget::Invalidate(). r=smaug

---
 widget/PuppetWidget.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/widget/PuppetWidget.cpp b/widget/PuppetWidget.cpp
index 9b49681296cc..f57287e93e84 100644
--- a/widget/PuppetWidget.cpp
+++ b/widget/PuppetWidget.cpp
@@ -10,6 +10,7 @@
 #include "ClientLayerManager.h"
 #include "gfxPlatform.h"
 #include "mozilla/dom/TabChild.h"
+#include "mozilla/dom/TabGroup.h"
 #include "mozilla/gfx/gfxVars.h"
 #include "mozilla/Hal.h"
 #include "mozilla/IMEStateManager.h"
@@ -309,9 +310,10 @@ PuppetWidget::Invalidate(const LayoutDeviceIntRect& aRect)
 
   mDirtyRegion.Or(mDirtyRegion, aRect);
 
-  if (!mDirtyRegion.IsEmpty() && !mPaintTask.IsPending()) {
+  if (mTabChild && !mDirtyRegion.IsEmpty() && !mPaintTask.IsPending()) {
     mPaintTask = new PaintTask(this);
-    NS_DispatchToCurrentThread(mPaintTask.get());
+    nsCOMPtr<nsIRunnable> event(mPaintTask.get());
+    mTabChild->TabGroup()->Dispatch("PuppetWidget::Invalidate", TaskCategory::Other, event.forget());
     return;
   }
 }