Fix Failing WebXr testForNullPoses tests

With the recent change to enforce referenceSpace requests, these tests
were failing because the inline session did not request the local
reference space.

Bug: 996142
Change-Id: If0ef9e110df64498c2c73b2fdf0d4efa29ac111b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1779311
Commit-Queue: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Auto-Submit: Alexander Cooper <alcooper@chromium.org>
Reviewed-by: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#692303}

chrome/test/data/xr/e2e_test_files/html/test_inline_vr_poses.html

@@ -25,7 +25,9 @@ test can query for whether each submitted frame used the correct pose.
         [sessionTypes.IMMERSIVE]: 'local',
         [sessionTypes.MAGIC_WINDOW]: 'local',
         [sessionTypes.AR]: 'local'
-      }
+      };
+
+      nonImmersiveSessionInit = { requiredFeatures: ['local'] };
       requestMagicWindowSession();
 
       let MAX_FRAME_CALLBACKS = 10;

chrome/test/data/xr/e2e_test_files/resources/webxr_boilerplate.js

@@ -74,6 +74,7 @@ sessionInfos[sessionTypes.AR] = new SessionInfo();
 sessionInfos[sessionTypes.MAGIC_WINDOW] = new SessionInfo();
 
 var immersiveSessionInit = {};
+var nonImmersiveSessionInit = {};
 
 function getSessionType(session) {
   if (session.mode == 'immersive-vr') {
@@ -209,7 +210,7 @@ function onXRFrame(t, frame) {
 function requestMagicWindowSession() {
   // Set up an inline session (magic window) drawing into the full screen canvas
   // on the page
-  navigator.xr.requestSession('inline')
+  navigator.xr.requestSession('inline', nonImmersiveSessionInit)
   .then((session) => {
     session.mode = 'inline';
     sessionInfos[sessionTypes.MAGIC_WINDOW].currentSession = session;