Add more WebVR layout tests and fix small issues they found

third_party/WebKit/Source/modules/vr/NavigatorVR.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/vr/NavigatorVR.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentUserGestureToken.h"
@@ skipping 92 matching lines @@
   return "NavigatorVR";
 }
 
 void NavigatorVR::enqueueVREvent(VRDisplayEvent* event) {
   if (host()->frame()) {
     host()->frame()->domWindow()->enqueueWindowEvent(event);
   }
 }
 
 void NavigatorVR::dispatchVRGestureEvent(VRDisplayEvent* event) {
-  if (host()->frame())
+  if (!(host()->frame()))

[haraken, 2017/01/11 23:47:01]

Sorry... I think this is a bug my CL injected.

     return;
   UserGestureIndicator gestureIndicator(
       DocumentUserGestureToken::create(document()));
   LocalDOMWindow* window = host()->frame()->domWindow();
   DCHECK(window);
   event->setTarget(window);
   window->dispatchEvent(event);
 }
 
 void NavigatorVR::pageVisibilityChanged() {
@@ skipping 27 matching lines @@
 }
 
 void NavigatorVR::didRemoveAllEventListeners(LocalDOMWindow* window) {
   if (m_controller) {
     m_controller->setListeningForActivate(false);
     m_listeningForActivate = false;
   }
 }
 
 }  // namespace blink