Bug 1565951 - Request a longer timeout on a WebGL test for MinGW buil…

…ds r=jgilbert a=jcristau

Differential Revision: https://phabricator.services.mozilla.com/D38029

--HG--
extra : rebase_source : 4200d524d8822fac856ef6b5a20181b962e38bae
extra : source : fd659923c3fc996773813deb08b0455d33d1b9b6

dom/canvas/test/webgl-conf/mochi-single.html

@@ -39,14 +39,19 @@
   parent.SimpleTest.requestFlakyTimeout('untriaged');
 
   try {
+    let timeoutLengthMultiplier;
     if (navigator.appVersion.includes('Android')) {
       // From layout/tools/reftest/reftest.js:
       var version = SpecialPowers.Services.sysinfo.getProperty('version');
       var kAndroidVersion2_3 = 9;
       if (version == kAndroidVersion2_3) {
-        var timeoutLengthMultiplier = 2.0;
-        parent.SimpleTest.requestLongerTimeout(timeoutLengthMultiplier);
+        timeoutLengthMultiplier = 2.0;
       }
+    } else if (SpecialPowers.Services.sysinfo.getProperty('isMinGW')) {
+      timeoutLengthMultiplier = 2.0;
+    }
+    if (timeoutLengthMultiplier) {
+      parent.SimpleTest.requestLongerTimeout(timeoutLengthMultiplier);
     }
   } catch (e) {
     console.log('Warning: No SpecialPowers.');

xpcom/base/nsSystemInfo.cpp

@@ -767,6 +767,17 @@ nsresult nsSystemInfo::Init() {
   }
 
 #ifdef XP_WIN
+  bool isMinGW =
+#  ifdef __MINGW32__
+      true;
+#  else
+      false;
+#  endif
+  rv = SetPropertyAsBool(NS_LITERAL_STRING("isMinGW"), !!isMinGW);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
   // IsWow64Process2 is only available on Windows 10+, so we have to dynamically
   // check for its existence.
   typedef BOOL(WINAPI * LPFN_IWP2)(HANDLE, USHORT*, USHORT*);