From ed429632780f07269d887d125e02a5e8750ec3c2 Mon Sep 17 00:00:00 2001
From: James Willcox <snorp@snorp.net>
Date: Thu, 3 May 2018 12:26:40 -0500
Subject: [PATCH] Bug 1450856 - Fix PromptDelegate.onExternalResponse() for
 non-e10s r=esawin

MozReview-Commit-ID: FFuX0fviAgj
---
 .../components/geckoview/GeckoViewExternalAppService.js       | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mobile/android/components/geckoview/GeckoViewExternalAppService.js b/mobile/android/components/geckoview/GeckoViewExternalAppService.js
index 1ba1f4262a34..ac622e763e36 100644
--- a/mobile/android/components/geckoview/GeckoViewExternalAppService.js
+++ b/mobile/android/components/geckoview/GeckoViewExternalAppService.js
@@ -23,12 +23,10 @@ ExternalAppService.prototype = {
 
   doContent(mimeType, request, context, forceSave) {
     const channel = request.QueryInterface(Ci.nsIChannel);
-    const mm = context.QueryInterface(Ci.nsIDocShell).tabChild.messageManager;
-
     debug `doContent: uri=${channel.URI.displaySpec}
                       contentType=${channel.contentType}`;
 
-    EventDispatcher.forMessageManager(mm).sendRequest({
+    GeckoViewUtils.getDispatcherForWindow(context).sendRequest({
       type: "GeckoView:ExternalResponse",
       uri: channel.URI.displaySpec,
       contentType: channel.contentType,