From 4d748c4e6c2ce74dce1a4fd2edaf174b0ffcb248 Mon Sep 17 00:00:00 2001
From: Frank-Rainer Grahl <frgrahl@gmx.net>
Date: Tue, 5 Jun 2018 12:52:32 +0200
Subject: [PATCH] Bug 1440253 - Remove unused nsIDOMCanvasRenderingContext2D.
 r=IanN Port bug 1440039 [Remove nsIDOMCanvasRenderingContext2D].

---
 suite/modules/WindowsPreviewPerTab.jsm | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/suite/modules/WindowsPreviewPerTab.jsm b/suite/modules/WindowsPreviewPerTab.jsm
index e5cee7627c..1100da8ec6 100644
--- a/suite/modules/WindowsPreviewPerTab.jsm
+++ b/suite/modules/WindowsPreviewPerTab.jsm
@@ -325,14 +325,6 @@ PreviewController.prototype = {
   }
 };
 
-XPCOMUtils.defineLazyGetter(PreviewController.prototype, "canvasPreviewFlags",
-  function () { let canvasInterface = Ci.nsIDOMCanvasRenderingContext2D;
-                return canvasInterface.DRAWWINDOW_DRAW_VIEW
-                     | canvasInterface.DRAWWINDOW_DRAW_CARET
-                     | canvasInterface.DRAWWINDOW_ASYNC_DECODE_IMAGES
-                     | canvasInterface.DRAWWINDOW_DO_NOT_FLUSH;
-});
-
 ////////////////////////////////////////////////////////////////////////////////
 //// TabWindow