From 51156be7b49acef77283dd586fdf56ea47473b7e Mon Sep 17 00:00:00 2001
From: Xidorn Quan <quanxunzhen@gmail.com>
Date: Fri, 11 Mar 2016 19:10:44 +0800
Subject: [PATCH] Bug 1244546 part 1 - Apply proper unit conversion for
 SynthesizeNativeMouseEvent. r=karlt

MozReview-Commit-ID: 6XLzx7CyFEj

--HG--
extra : source : 5c61d059fc06b04456ab69c608d98e1e9433619d
---
 widget/gtk/nsWindow.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/widget/gtk/nsWindow.cpp b/widget/gtk/nsWindow.cpp
index 1d6f21df6549..e72077145fb6 100644
--- a/widget/gtk/nsWindow.cpp
+++ b/widget/gtk/nsWindow.cpp
@@ -6823,7 +6823,8 @@ nsWindow::SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
     // aNativeMessage != GDK_BUTTON_RELEASE we'll synthesize a motion event
     // that will be emitted by gdk_display_warp_pointer().
     GdkScreen* screen = gdk_window_get_screen(mGdkWindow);
-    gdk_display_warp_pointer(display, screen, aPoint.x, aPoint.y);
+    GdkPoint point = DevicePixelsToGdkPointRoundDown(aPoint);
+    gdk_display_warp_pointer(display, screen, point.x, point.y);
   }
 
   return NS_OK;