AnimationPolicy setting is applied to SVG animation.

Source/core/svg/animation/SMILTimeContainer.h

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SMILTimeContainer_h
 #define SMILTimeContainer_h
 
 #include "core/dom/QualifiedName.h"
 #include "core/svg/animation/SMILTime.h"
 #include "platform/Timer.h"
+#include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
@@ skipping 35 matching lines @@
         // No frame scheduled.
         Idle,
         // Scheduled a wakeup to update the animation values.
         SynchronizeAnimations,
         // Scheduled a wakeup to trigger an animation frame.
         FutureAnimationFrame,
         // Scheduled a animation frame for continuous update.
         AnimationFrame
     };
 
+    enum AnimationPolicyOnceAction {
+        // Restart OnceTimer if the timeline is not paused.
+        RestartOnceTimerIfNotPaused,
+        // Restart OnceTimer.
+        RestartOnceTimer,
+        // Cancel OnceTimer.
+        CancelOnceTimer
+    };
+
     bool isTimelineRunning() const;
     void scheduleAnimationFrame(SMILTime fireTime);
     void cancelAnimationFrame();
     void wakeupTimerFired(Timer<SMILTimeContainer>*);
+    void scheduleAnimationPolicyTimer();
+    void cancelAnimationPolicyTimer();
+    void animationPolicyTimerFired(Timer<SMILTimeContainer>*);
+    ImageAnimationPolicy animationPolicy() const;
+    bool handleAnimationPolicy(AnimationPolicyOnceAction);
     void updateAnimationsAndScheduleFrameIfNeeded(SMILTime elapsed, bool seekToTime = false);
     SMILTime updateAnimations(SMILTime elapsed, bool seekToTime = false);
     void serviceOnNextFrame();
     void scheduleWakeUp(double delayTime, FrameSchedulingState);
     bool hasPendingSynchronization() const;
 
     void updateDocumentOrderIndexes();
     double lastResumeTime() const { return m_resumeTime ? m_resumeTime : m_beginTime; }
 
     Document& document() const;
     double currentTime() const;
 
     double m_beginTime;
     double m_pauseTime;
     double m_resumeTime;
     double m_accumulatedActiveTime;
     double m_presetStartTime;
 
     FrameSchedulingState m_frameSchedulingState;
     bool m_documentOrderIndexesDirty;
 
     Timer<SMILTimeContainer> m_wakeupTimer;
+    Timer<SMILTimeContainer> m_animationPolicyOnceTimer;
 
     using ElementAttributePair = pair<RawPtrWillBeWeakMember<SVGElement>, QualifiedName>;
     using AnimationsLinkedHashSet = WillBeHeapLinkedHashSet<RawPtrWillBeWeakMember<SVGSMILElement>>;
     using GroupedAnimationsMap = WillBeHeapHashMap<ElementAttributePair, OwnPtrWillBeMember<AnimationsLinkedHashSet>>;
     GroupedAnimationsMap m_scheduledAnimations;
 
     SVGSVGElement& m_ownerSVGElement;
 
 #if ENABLE(ASSERT)
     bool m_preventScheduledAnimationsChanges;
 #endif
 };
 }
 
 #endif // SMILTimeContainer_h