// Copyright 2013 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 CC_ANIMATION_LAYER_ANIMATION_VALUE_PROVIDER_H_ #define CC_ANIMATION_LAYER_ANIMATION_VALUE_PROVIDER_H_ #include "cc/base/cc_export.h" #include "ui/gfx/vector2d_f.h" namespace cc { // A LayerAnimationValueProvider is used for determining the starting value // for animations that start at their 'current' value rather than at a // pre-specified value. class CC_EXPORT LayerAnimationValueProvider { public: virtual ~LayerAnimationValueProvider() {} virtual gfx::Vector2dF ScrollOffsetForAnimation() const = 0; }; } // namespace cc #endif // CC_ANIMATION_LAYER_ANIMATION_VALUE_PROVIDER_H_