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 {
 
 class Document;
 class SVGElement;
 class SVGSMILElement;
 class SVGSVGElement;
 
 class SMILTimeContainer : public RefCountedWillBeGarbageCollectedFinalized<SMILTimeContainer>  {
 public:
     static PassRefPtrWillBeRawPtr<SMILTimeContainer> create(SVGSVGElement& owner) { return adoptRefWillBeNoop(new SMILTimeContainer(owner)); }
     ~SMILTimeContainer();
 
     void schedule(SVGSMILElement*, SVGElement*, const QualifiedName&);
     void unschedule(SVGSMILElement*, SVGElement*, const QualifiedName&);
     void notifyIntervalsChanged();
 
     SMILTime elapsed() const;
 
     bool isPaused() const;
     bool isStarted() const;
+    bool isFrozen() const;
 
     void begin();
-    void pause();
+    void pause(bool freeze = false);
     void resume();
     void setElapsed(SMILTime);
 
     void serviceAnimations(double monotonicAnimationStartTime);
     bool hasAnimations() const;
 
     void setDocumentOrderIndexesDirty() { m_documentOrderIndexesDirty = true; }
 
     void trace(Visitor*);
 
 private:
     explicit SMILTimeContainer(SVGSVGElement& owner);
 
     enum FrameSchedulingState {
         // 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 AnimatedState {

[fs, 2014/12/22 16:23:15]

I'd prefer to enumerate all the discrete states rather than using a bitfield.
I'm also not sure if AnimatedState is the bet term for this - maybe
TimelineState?

[je_julie(Not used), 2014/12/24 03:50:51]

I removed it with improved concept.

+        // initial state.
+        NormalState = 0,
+        // Paused animations.
+        PausedState = 1 << 0,
+        // Frozen animations.
+        FrozenState = 1 << 1
+    };
 
+    ImageAnimationPolicy getAnimationPolicy() const;

[fs, 2014/12/22 16:23:15]

animationPolicy

[je_julie(Not used), 2014/12/24 03:50:51]

done.

+    void freezeTimeline();
     bool isTimelineRunning() const;
     void scheduleAnimationFrame(SMILTime fireTime);
     void cancelAnimationFrame();
     void wakeupTimerFired(Timer<SMILTimeContainer>*);
+    void cancelAnimationPolicyTimer();
+    void startAnimationPolicyTimer();
+    void animationPolicyOnceTimerFired(Timer<SMILTimeContainer>*);
     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;
+    int m_animationState;

[fs, 2014/12/22 16:23:15]

With the discrete states this would then be the enum type instead.

[je_julie(Not used), 2014/12/24 03:50:51]

I removed it with improved concept.

 
     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