Use correct w value in xrFrame_getPose

Values other than 1 are supposed to throw
servo · bors-servo · Jul 17, 2019 · Jul 16, 2019 · Jul 16, 2019 · Jul 16, 2019
commit 37d758dae1cbe9a008473f6dd6cd97e0f42e8efc
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json

    "testharness"
   ],
   "webxr/xrFrame_getPose.https.html": [
-   "50e8abf145b98730f4859c5ccd2ded4eb38d57ba",
+   "313cd11c32005abdfa4686bc857e514ee4a29f75",
    "testharness"
   ],
   "webxr/xrFrame_lifetime.https.html": [
diff --git a/tests/wpt/web-platform-tests/webxr/xrFrame_getPose.https.html b/tests/wpt/web-platform-tests/webxr/xrFrame_getPose.https.html
@@ -31,7 +31,7 @@
           x : 0,
           y : 1,
           z : 0,
-          w : 0
+          w : 1
         }),
         DOMPointReadOnly.fromPoint({
           x : Math.sin(radians / 2),
@@ -47,7 +47,7 @@
           x : 1,
           y : 0,
           z : 0,
-          w : 0
+          w : 1
         }),
         DOMPointReadOnly.fromPoint({
           x : 0,