Send vrdisplayactivate to the most recently focused navigator listening for displayactivate.

third_party/WebKit/Source/modules/vr/VRDisplay.h

 // Copyright 2016 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.
 
 #ifndef VRDisplay_h
 #define VRDisplay_h
 
 #include "core/dom/Document.h"
 #include "core/dom/FrameRequestCallback.h"
 #include "core/events/EventTarget.h"
@@ skipping 173 matching lines @@
 
   Member<ScriptedAnimationController> m_scriptedAnimationController;
   bool m_pendingRaf = false;
   bool m_pendingVsync = false;
   bool m_inAnimationFrame = false;
   bool m_inDisplayActivate = false;
   bool m_displayBlurred = false;
   double m_timebase = -1;
   bool m_pendingPreviousFrameRender = false;
   bool m_pendingSubmitFrame = false;
+  bool m_VSyncConnectionFailed = false;
 
   device::mojom::blink::VRDisplayPtr m_display;
 
   mojo::Binding<device::mojom::blink::VRSubmitFrameClient>
       m_submit_frame_client_binding;
   mojo::Binding<device::mojom::blink::VRDisplayClient> m_displayClientBinding;
   device::mojom::blink::VRVSyncProviderPtr m_vrVSyncProvider;
 
   HeapDeque<Member<ScriptPromiseResolver>> m_pendingPresentResolvers;
 };
@@ skipping 16 matching lines @@
   RequestDenied = 12,
   FullscreenNotEnabled = 13,
   PresentationResultMax,  // Must be last member of enum.
 };
 
 void ReportPresentationResult(PresentationResult);
 
 }  // namespace blink
 
 #endif  // VRDisplay_h