Adding WebVR temporary presentation handling on mobile

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 "bindings/core/v8/ScriptWrappable.h"
 #include "core/dom/Document.h"
 #include "core/dom/FrameRequestCallback.h"
 #include "device/vr/vr_service.mojom-blink.h"
 #include "modules/vr/VRDisplayCapabilities.h"
 #include "modules/vr/VRLayer.h"
+#include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebGraphicsContext3DProvider.h"
 #include "public/platform/WebThread.h"
 #include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace gpu {
 namespace gles2 {
 class GLES2Interface;
 }
@@ skipping 54 matching lines @@
 
     void update(const device::blink::VRDisplayPtr&);
 
     VRController* controller();
 
 private:
     // TaskObserver implementation.
     void didProcessTask() override;
     void willProcessTask() override { }
 
+    void onFullscreenCheck(TimerBase*);
+
     Member<NavigatorVR> m_navigatorVR;
     unsigned m_displayId;
     String m_displayName;
     bool m_isConnected;
     bool m_isPresenting;
     bool m_canUpdateFramePose;
     unsigned m_compositorHandle;
     Member<VRDisplayCapabilities> m_capabilities;
     Member<VRStageParameters> m_stageParameters;
     Member<VREyeParameters> m_eyeParametersLeft;
     Member<VREyeParameters> m_eyeParametersRight;
     Member<VRPose> m_framePose;
+    VRLayer m_layer;
+
+    Timer<VRDisplay> m_fullscreenCheckTimer;
 };
 
 using VRDisplayVector = HeapVector<Member<VRDisplay>>;
 
 } // namespace blink
 
 #endif // VRDisplay_h