Share animations from compositor to main thread.

third_party/WebKit/Source/platform/animation/CompositorScrollOffsetAnimationCurve.cpp

 // 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.
 
 #include "platform/animation/CompositorScrollOffsetAnimationCurve.h"
 
 #include "cc/animation/scroll_offset_animation_curve.h"
 #include "cc/animation/timing_function.h"
 
 using blink::CompositorScrollOffsetAnimationCurve;
@@ skipping 21 matching lines @@
     FloatPoint targetValue,
     TimingFunctionType timingFunction,
     ScrollDurationBehavior durationBehavior)
     : m_curve(cc::ScrollOffsetAnimationCurve::Create(
         gfx::ScrollOffset(targetValue.x(), targetValue.y()),
         createTimingFunction(timingFunction),
         GetDurationBehavior(durationBehavior)))
 {
 }
 
+CompositorScrollOffsetAnimationCurve::CompositorScrollOffsetAnimationCurve(
+    cc::ScrollOffsetAnimationCurve* curve)
+    : m_curve(curve->CloneToScrollOffsetAnimationCurve())
+{
+}
+
 CompositorScrollOffsetAnimationCurve::~CompositorScrollOffsetAnimationCurve()
 {
 }
 
 CompositorAnimationCurve::AnimationCurveType CompositorScrollOffsetAnimationCurve::type() const
 {
     return CompositorAnimationCurve::AnimationCurveTypeScrollOffset;
 }
 
 void CompositorScrollOffsetAnimationCurve::setInitialValue(FloatPoint initialValue)
@@ skipping 22 matching lines @@
 {
     m_curve->UpdateTarget(time, gfx::ScrollOffset(newTarget.x(), newTarget.y()));
 }
 
 scoped_ptr<cc::AnimationCurve> CompositorScrollOffsetAnimationCurve::cloneToAnimationCurve() const
 {
     return m_curve->Clone();
 }
 
 } // namespace blink