From f4be588d5bb1f1403bb3fbb3bd1b97f0f1723bcf Mon Sep 17 00:00:00 2001
From: Brian Hackett <bhackett1024@gmail.com>
Date: Tue, 21 Aug 2018 00:56:47 +0000
Subject: [PATCH] Bug 1483240 - Disable plugins in recording/replaying
 processes, r=jimm.

--HG--
extra : rebase_source : 342a8a0b55affc43858e9cba231888af4411892e
---
 dom/plugins/base/nsPluginHost.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dom/plugins/base/nsPluginHost.cpp b/dom/plugins/base/nsPluginHost.cpp
index 9d879d98c48c..5ace9a65eec3 100644
--- a/dom/plugins/base/nsPluginHost.cpp
+++ b/dom/plugins/base/nsPluginHost.cpp
@@ -793,6 +793,12 @@ nsPluginHost::InstantiatePluginInstance(const nsACString& aMimeType, nsIURI* aUR
     return NS_ERROR_FAILURE;
   }
 
+  // Plugins are not supported when recording or replaying executions.
+  // See bug 1483232.
+  if (recordreplay::IsRecordingOrReplaying()) {
+    return NS_ERROR_FAILURE;
+  }
+
   RefPtr<nsPluginInstanceOwner> instanceOwner = new nsPluginInstanceOwner();
   if (!instanceOwner) {
     return NS_ERROR_OUT_OF_MEMORY;