From 845924eac548e57f711c1f07259f299f15bf9f2c Mon Sep 17 00:00:00 2001
From: Eric Rahm <erahm@mozilla.com>
Date: Thu, 23 Jul 2015 11:02:45 -0700
Subject: [PATCH] Bug 1184293 - Don't call ThirdPartyUtil::GetBaseDomain if
 aUri is null. r=jduell

Return early if aUri is null so as to avoid warnings about it.
---
 dom/base/ThirdPartyUtil.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dom/base/ThirdPartyUtil.cpp b/dom/base/ThirdPartyUtil.cpp
index f04b07d068c0..436abc00ae56 100644
--- a/dom/base/ThirdPartyUtil.cpp
+++ b/dom/base/ThirdPartyUtil.cpp
@@ -344,6 +344,10 @@ NS_IMETHODIMP
 ThirdPartyUtil::GetBaseDomain(nsIURI* aHostURI,
                               nsACString& aBaseDomain)
 {
+  if (!aHostURI) {
+    return NS_ERROR_INVALID_ARG;
+  }
+
   // Get the base domain. this will fail if the host contains a leading dot,
   // more than one trailing dot, or is otherwise malformed.
   nsresult rv = mTLDService->GetBaseDomain(aHostURI, 0, aBaseDomain);