Implement WebVR presentation pausing for VR Shell Menu Mode

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/ExceptionCode.h"
@@ skipping 86 matching lines @@
   return "NavigatorVR";
 }
 
 void NavigatorVR::fireVRDisplayPresentChange(VRDisplay* display) {
   if (frame() && frame()->localDOMWindow()) {
     frame()->localDOMWindow()->enqueueWindowEvent(VRDisplayEvent::create(
         EventTypeNames::vrdisplaypresentchange, true, false, display, ""));
   }
 }
 
+void NavigatorVR::fireVrDisplayOnBlur(VRDisplay* display) {
+  fireVREvent(VRDisplayEvent::create(EventTypeNames::vrdisplayblur, true, false,
+                                     display, ""));
+}
+
+void NavigatorVR::fireVrDisplayOnFocus(VRDisplay* display) {
+  fireVREvent(VRDisplayEvent::create(EventTypeNames::vrdisplayfocus, true,
+                                     false, display, ""));
+}
+
 void NavigatorVR::fireVREvent(VRDisplayEvent* event) {
   if (frame() && frame()->localDOMWindow()) {
     frame()->localDOMWindow()->enqueueWindowEvent(event);
   }
 }
 
 }  // namespace blink