Allow VRDisplay to manage it's own rAF callbacks

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 "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace gpu {
 namespace gles2 {
 class GLES2Interface;
 }
 }
 
 namespace blink {
 
 class NavigatorVR;
+class ScriptedAnimationController;
 class VRController;
 class VREyeParameters;
 class VRFrameData;
 class VRStageParameters;
 class VRPose;
 
 class WebGLRenderingContextBase;
 
 enum VREye { VREyeNone, VREyeLeft, VREyeRight };
 
@@ skipping 20 matching lines @@
   double depthNear() const { return m_depthNear; }
   double depthFar() const { return m_depthFar; }
 
   void setDepthNear(double value) { m_depthNear = value; }
   void setDepthFar(double value) { m_depthFar = value; }
 
   VREyeParameters* getEyeParameters(const String&);
 
   int requestAnimationFrame(FrameRequestCallback*);
   void cancelAnimationFrame(int id);
+  void serviceScriptedAnimations(double monotonicAnimationStartTime);
 
   ScriptPromise requestPresent(ScriptState*, const HeapVector<VRLayer>& layers);
   ScriptPromise exitPresent(ScriptState*);
 
   HeapVector<VRLayer> getLayers();
 
   void submitFrame();
 
   DECLARE_VIRTUAL_TRACE();
 
@@ skipping 10 matching lines @@
   void forceExitPresent();
 
   void updateLayerBounds();
   void disconnected();
 
   VRController* controller();
 
  private:
   void onFullscreenCheck(TimerBase*);
 
+  ScriptedAnimationController& ensureScriptedAnimationController(Document*);
+
   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;
   device::blink::VRPosePtr m_framePose;
   VRLayer m_layer;
   double m_depthNear;
   double m_depthFar;
 
   Timer<VRDisplay> m_fullscreenCheckTimer;
   gpu::gles2::GLES2Interface* m_contextGL;
   Member<WebGLRenderingContextBase> m_renderingContext;
+
+  Member<ScriptedAnimationController> m_scriptedAnimationController;
+  bool m_animationCallbackRequested;
+  bool m_inAnimationFrame;
 };
 
 using VRDisplayVector = HeapVector<Member<VRDisplay>>;
 
 enum class PresentationResult {
   Requested = 0,
   Success = 1,
   SuccessAlreadyPresenting = 2,
   VRDisplayCannotPresent = 3,
   PresentationNotSupportedByDisplay = 4,
   VRDisplayNotFound = 5,
   NotInitiatedByUserGesture = 6,
   InvalidNumberOfLayers = 7,
   InvalidLayerSource = 8,
   LayerSourceMissingWebGLContext = 9,
   InvalidLayerBounds = 10,
   ServiceInactive = 11,
   RequestDenied = 12,
   PresentationResultMax,  // Must be last member of enum.
 };
 
 void ReportPresentationResult(PresentationResult);
 
 }  // namespace blink
 
 #endif  // VRDisplay_h