1 files changed, 0 insertions, 150 deletions
diff --git a/Source/WebCore/rendering/style/WillChangeData.cpp b/Source/WebCore/rendering/style/WillChangeData.cpp
deleted file mode 100644
index 77d4aa871..000000000
--- a/Source/WebCore/rendering/style/WillChangeData.cpp
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
- * Copyright (C) 2015 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
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 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.
- */
-
-#include "config.h"
-#include "WillChangeData.h"
-
-namespace WebCore {
-
-bool WillChangeData::operator==(const WillChangeData& other) const
-{
-    return m_animatableFeatures == other.m_animatableFeatures;
-}
-
-bool WillChangeData::containsScrollPosition() const
-{
-    for (const auto& feature : m_animatableFeatures) {
-        if (feature.feature() == ScrollPosition)
-            return true;
-    }
-    return false;
-}
-
-bool WillChangeData::containsContents() const
-{
-    for (const auto& feature : m_animatableFeatures) {
-        if (feature.feature() == Contents)
-            return true;
-    }
-    return false;
-}
-
-bool WillChangeData::containsProperty(CSSPropertyID property) const
-{
-    for (const auto& feature : m_animatableFeatures) {
-        if (feature.property() == property)
-            return true;
-    }
-    return false;
-}
-
-// "If any non-initial value of a property would create a stacking context on the element,
-// specifying that property in will-change must create a stacking context on the element."
-static bool propertyCreatesStackingContext(CSSPropertyID property)
-{
-    switch (property) {
-    case CSSPropertyPerspective:
-    case CSSPropertyTransform:
-    case CSSPropertyTransformStyle:
-    case CSSPropertyWebkitTransformStyle:
-    case CSSPropertyClipPath:
-    case CSSPropertyWebkitClipPath:
-    case CSSPropertyMask:
-    case CSSPropertyOpacity:
-    case CSSPropertyPosition:
-    case CSSPropertyZIndex:
-    case CSSPropertyWebkitBoxReflect:
-#if ENABLE(CSS_COMPOSITING)
-    case CSSPropertyMixBlendMode:
-    case CSSPropertyIsolation:
-#endif
-    case CSSPropertyFilter:
-#if ENABLE(FILTERS_LEVEL_2)
-    case CSSPropertyWebkitBackdropFilter:
-#endif
-    case CSSPropertyWebkitMask:
-    case CSSPropertyWebkitMaskImage:
-    case CSSPropertyWebkitMaskBoxImage:
-#if ENABLE(CSS_REGIONS)
-    case CSSPropertyWebkitFlowFrom:
-#endif
-#if ENABLE(ACCELERATED_OVERFLOW_SCROLLING)
-    case CSSPropertyWebkitOverflowScrolling:
-#endif
-        return true;
-    default:
-        return false;
-    }
-}
-
-static bool propertyTriggersCompositing(CSSPropertyID property)
-{
-    switch (property) {
-    case CSSPropertyOpacity:
-    case CSSPropertyFilter:
-#if ENABLE(FILTERS_LEVEL_2)
-    case CSSPropertyWebkitBackdropFilter:
-#endif
-        return true;
-    default:
-        return false;
-    }
-}
-
-static bool propertyTriggersCompositingOnBoxesOnly(CSSPropertyID property)
-{
-    // Don't trigger for perspective and transform-style, because those
-    // only do compositing if they have a 3d-transformed descendant and
-    // we don't want to do compositing all the time.
-    // Similarly, we don't want -webkit-overflow-scrolling-touch to
-    // always composite if there's no scrollable overflow.
-    switch (property) {
-    case CSSPropertyTransform:
-        return true;
-    default:
-        return false;
-    }
-}
-
-void WillChangeData::addFeature(Feature feature, CSSPropertyID propertyID)
-{
-    ASSERT(feature == Property || propertyID == CSSPropertyInvalid);
-    m_animatableFeatures.append(AnimatableFeature(feature, propertyID));
-
-    m_canCreateStackingContext |= propertyCreatesStackingContext(propertyID);
-
-    m_canTriggerCompositingOnInline |= propertyTriggersCompositing(propertyID);
-    m_canTriggerCompositing |= m_canTriggerCompositingOnInline | propertyTriggersCompositingOnBoxesOnly(propertyID);
-}
-
-WillChangeData::FeaturePropertyPair WillChangeData::featureAt(size_t index) const
-{
-    if (index >= m_animatableFeatures.size())
-        return FeaturePropertyPair(Invalid, CSSPropertyInvalid);
-
-    return m_animatableFeatures[index].featurePropertyPair();
-}
-
-} // namespace WebCore