compositor-worker: cc->blink mutation plumbing

third_party/WebKit/Source/core/animation/ElementAnimations.h

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (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 ElementAnimations_h
 #define ElementAnimations_h
 
 #include "core/animation/AnimationStack.h"
+#include "core/animation/CompositorMutationAnimations.h"
 #include "core/animation/css/CSSAnimations.h"
 #include "wtf/HashCountedSet.h"
 #include "wtf/HashMap.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class CSSAnimations;
 
 using AnimationCountedSet = HeapHashCountedSet<WeakMember<Animation>>;
 
 class ElementAnimations : public GarbageCollectedFinalized<ElementAnimations> {
     WTF_MAKE_NONCOPYABLE(ElementAnimations);
 public:
     ElementAnimations();
     ~ElementAnimations();
 
     // Animations that are currently active for this element, their effects will be applied
     // during a style recalc. CSS Transitions are included in this stack.
     AnimationStack& animationStack() { return m_animationStack; }
     const AnimationStack& animationStack() const { return m_animationStack; }
+    // Tracks long running animations that are responsible for applying mutations
+    // from compositor worker.
+    CompositorMutationAnimations& compositorMutationAnimations() { return m_compositorMutationAnimations; }
+    const CompositorMutationAnimations& compositorMutationAnimations() const { return m_compositorMutationAnimations; }
     // Tracks the state of active CSS Animations and Transitions. The individual animations
     // will also be part of the animation stack, but the mapping betwen animation name and
     // animation is kept here.
     CSSAnimations& cssAnimations() { return m_cssAnimations; }
     const CSSAnimations& cssAnimations() const { return m_cssAnimations; }
 
     // Animations which have effects targeting this element.
     AnimationCountedSet& animations() { return m_animations; }
 
     bool isEmpty() const { return m_animationStack.isEmpty() && m_cssAnimations.isEmpty() && m_animations.isEmpty(); }
@@ skipping 11 matching lines @@
     void addEffect(KeyframeEffect* effect) { m_effects.add(effect); }
     void dispose();
 #endif
 
     DECLARE_TRACE();
 
 private:
     bool isAnimationStyleChange() const;
 
     AnimationStack m_animationStack;
+    CompositorMutationAnimations m_compositorMutationAnimations;
     CSSAnimations m_cssAnimations;
     AnimationCountedSet m_animations;
     bool m_animationStyleChange;
     RefPtr<ComputedStyle> m_baseComputedStyle;
 
 #if !ENABLE(OILPAN)
     // TODO(oilpan): This is to avoid a reference cycle that keeps Elements
     // alive and won't be needed once the Node hierarchy becomes traceable.
     HeapHashSet<WeakMember<KeyframeEffect>> m_effects;
 #endif
 
     // CSSAnimations and DeferredLegacyStyleInterpolation checks if a style change is due to animation.
     friend class CSSAnimations;
     friend class DeferredLegacyStyleInterpolation;
 };
 
 } // namespace blink
 
 #endif // ElementAnimations_h