Bug 1174323 - Disable screenClientXYConst subtest of pointerlock test on OS X. rs=KWierso

dom/tests/mochitest/pointerlock/test_pointerlock-api.html

@@ -62,6 +62,12 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=633602
           "file_allowPointerLockSandboxFlag.html"
         ];
 
+        var gDisableList = [
+          // Bug 1174323
+          { file: "file_screenClientXYConst.html",
+            platform: "MacIntel" }
+        ];
+
         var gTestWindow = null;
         var gTestIndex = 0;
 
@@ -98,8 +104,22 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=633602
 
         function runNextTest() {
           if (gTestIndex < gTestFiles.length) {
-            gTestWindow = window.open(gTestFiles[gTestIndex], "", "width=500,height=500");
+            var file = gTestFiles[gTestIndex];
             gTestIndex++;
+
+            var skipTest = false;
+            for (var item of gDisableList) {
+              if (item.file == file && navigator.platform == item.platform) {
+                skipTest = true;
+                break;
+              }
+            }
+            if (!skipTest) {
+              info(`Testing ${file}`);
+              gTestWindow = window.open(file, "", "width=500,height=500");
+            } else {
+              nextTest();
+            }
           } else {
             finish();
           }