Generate CSSPropertyEquality instead of using hand-updated file.

third_party/WebKit/Source/core/css/CSSPropertyEqualityCustom.cpp

Index: third_party/WebKit/Source/core/css/CSSPropertyEqualityCustom.cpp
diff --git a/third_party/WebKit/Source/core/css/CSSPropertyEqualityCustom.cpp b/third_party/WebKit/Source/core/css/CSSPropertyEqualityCustom.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..60829b0a152f71a435b074b8fa2861cae9eae462
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/CSSPropertyEqualityCustom.cpp
@@ -0,0 +1,477 @@
+// 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 "core/CSSPropertyEqualityCustom.h"
+
+#include "core/CSSPropertyNames.h"
+#include "core/css/CSSPropertyEquality.h"
+#include "core/style/ComputedStyle.h"
+#include "core/style/DataEquivalency.h"
+#include "core/style/FillLayer.h"
+
+namespace blink {
+
+namespace {
+
+template <CSSPropertyID property>
+bool fillLayersEqual(const FillLayer& aLayers, const FillLayer& bLayers)
+{
+    const FillLayer* aLayer = &aLayers;
+    const FillLayer* bLayer = &bLayers;
+    while (aLayer && bLayer) {
+        switch (property) {

[Timothy Loh, 2016/05/24 05:38:35]

Maybe it's nicer to pass a getter as the template argument instead of a
property?

+        case CSSPropertyBackgroundPositionX:
+        case CSSPropertyWebkitMaskPositionX:
+            if (aLayer->xPosition() != bLayer->xPosition())
+                return false;
+            break;
+        case CSSPropertyBackgroundPositionY:
+        case CSSPropertyWebkitMaskPositionY:
+            if (aLayer->yPosition() != bLayer->yPosition())
+                return false;
+            break;
+        case CSSPropertyBackgroundSize:
+        case CSSPropertyWebkitMaskSize:
+            if (!(aLayer->sizeLength() == bLayer->sizeLength()))
+                return false;
+            break;
+        case CSSPropertyBackgroundImage:
+            if (!dataEquivalent(aLayer->image(), bLayer->image()))
+                return false;
+            break;

[Timothy Loh, 2016/05/24 04:38:20]

missing breaks on subsequent cases

+        case CSSPropertyWebkitMaskComposite:
+            if (aLayer->composite() != bLayer->composite())
+                return false;
+        case CSSPropertyBackgroundOrigin:
+        case CSSPropertyWebkitMaskOrigin:
+            if (aLayer->origin() != bLayer->origin())
+                return false;
+        case CSSPropertyBackgroundBlendMode:
+            if (aLayer->blendMode() != bLayer->blendMode())
+                return false;
+        case CSSPropertyBackgroundAttachment:
+            if (aLayer->attachment() != bLayer->attachment())
+                return false;
+        case CSSPropertyBackgroundRepeatX:
+        case CSSPropertyWebkitMaskRepeatX:
+            if (aLayer->repeatX() != bLayer->repeatX())
+                return false;
+        case CSSPropertyBackgroundRepeatY:
+        case CSSPropertyWebkitMaskRepeatY:
+            if (aLayer->repeatY() != bLayer->repeatY())
+                return false;
+        case CSSPropertyBackgroundClip:
+        case CSSPropertyWebkitMaskClip:
+            if (aLayer->clip() != bLayer->clip())
+                return false;
+        case CSSPropertyMaskSourceType:
+            if (aLayer->maskSourceType() != bLayer->maskSourceType())
+                return false;
+        default:
+            NOTREACHED();
+            return true;
+        }
+
+        aLayer = aLayer->next();
+        bLayer = bLayer->next();
+    }
+
+    // FIXME: Shouldn't this be return !aLayer && !bLayer; ?
+    return true;
+}
+
+} // namespace
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskBoxImageWidthEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.maskBoxImageWidth() == b.maskBoxImageWidth();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertySizeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.pageSize() == b.pageSize() && a.getPageSizeType() == b.getPageSizeType();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyTextDecorationColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.textDecorationColor() == b.textDecorationColor()
+        && a.visitedLinkTextDecorationColor() == b.visitedLinkTextDecorationColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskCompositeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskComposite>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskPositionYEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskPositionY>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskPositionXEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskPositionX>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyContentEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.contentDataEquivalent(&b);
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyOutlineColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.outlineColor() == b.outlineColor()
+        && a.visitedLinkOutlineColor() == b.visitedLinkOutlineColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitTextEmphasisStyleEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return CSSPropertyEquality::propertiesEqual(CSSPropertyWebkitTextEmphasisColor, a, b)
+        && CSSPropertyEquality::propertiesEqual(CSSPropertyWebkitTextEmphasisStyle, a, b);
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitTextStrokeColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.textStrokeColor() == b.textStrokeColor()
+        && a.visitedLinkTextStrokeColor() == b.visitedLinkTextStrokeColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskBoxImageOutsetEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.maskBoxImageOutset() == b.maskBoxImageOutset();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyColumnCountEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.columnCount() == b.columnCount();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyGridTemplateRowsEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.gridTemplateRows() == b.gridTemplateRows();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskOriginEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskOrigin>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyFillEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    const SVGComputedStyle& aSVG = a.svgStyle();
+    const SVGComputedStyle& bSVG = b.svgStyle();
+    return aSVG.fillPaintType() == bSVG.fillPaintType()
+        && (aSVG.fillPaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.fillPaintColor() == bSVG.fillPaintColor())
+        && aSVG.visitedLinkFillPaintType() == bSVG.visitedLinkFillPaintType()
+        && (aSVG.visitedLinkFillPaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.visitedLinkFillPaintColor() == bSVG.visitedLinkFillPaintColor());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyZoomEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.zoom() == b.zoom();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskBoxImageRepeatEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.maskBoxImage().horizontalRule() == b.maskBoxImage().horizontalRule()
+        && a.maskBoxImage().verticalRule() == b.maskBoxImage().verticalRule();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundAttachmentEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundAttachment>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundImageEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundImage>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskClipEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskClip>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyCounterResetEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    const CounterDirectiveMap* aMap = a.counterDirectives();
+    const CounterDirectiveMap* bMap = b.counterDirectives();
+
+    if (!aMap || !bMap)
+        return true;
+
+    if (!aMap) {
+        aMap = bMap;
+        bMap = nullptr;
+    }
+
+    for (const auto& aItem : *aMap) {
+        if (!aItem.value.isReset())
+            continue;
+
+        if (!bMap)
+            return false;
+
+        if (!bMap->contains(aItem.key))
+            return false;
+
+        const auto& bItem = bMap->get(aItem.key);
+        if (aItem.value.resetValue() != bItem.resetValue())
+            return false;
+    }
+
+    return true;
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderImageSliceEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderImageSlices() == b.borderImageSlices();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyTextIndentEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.textIndent() == b.textIndent();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderImageOutsetEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderImageOutset() == b.borderImageOutset();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderImageRepeatEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderImage().horizontalRule() == b.borderImage().horizontalRule()
+        && a.borderImage().verticalRule() == b.borderImage().verticalRule();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyColumnRuleColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.columnRuleColor() == b.columnRuleColor()
+        && a.visitedLinkColumnRuleColor() == b.visitedLinkColumnRuleColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyGridTemplateColumnsEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.gridTemplateColumns() == b.gridTemplateColumns();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyColumnGapEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.columnGap() == b.columnGap();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyMaskSourceTypeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyMaskSourceType>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertySnapHeightEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.snapHeightPosition() == b.snapHeightPosition() && a.snapHeightUnit() == b.snapHeightUnit();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundRepeatYEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundRepeatY>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitAppRegionEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.getDraggableRegionMode() == b.getDraggableRegionMode();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitTextFillColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.textFillColor() == b.textFillColor()
+        && a.visitedLinkTextFillColor() == b.visitedLinkTextFillColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundClipEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundClip>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyOutlineStyleEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.outlineStyleIsAuto() == b.outlineStyleIsAuto()
+        && a.outlineStyle() == b.outlineStyle();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderRightColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderRightColor() == b.borderRightColor()
+        && a.visitedLinkBorderRightColor() == b.visitedLinkBorderRightColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskSizeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskSize>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderImageWidthEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderImageWidth() == b.borderImageWidth();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskImageEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return dataEquivalent(a.maskImage(), b.maskImage());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyGridTemplateAreasEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.namedGridArea() == b.namedGridArea()
+        && a.namedGridAreaRowCount() == b.namedGridAreaRowCount()
+        && b.namedGridAreaColumnCount() == b.namedGridAreaColumnCount();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundSizeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundSize>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyClipEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.clip() == b.clip();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.color() == b.color()
+        && a.visitedLinkColor() == b.visitedLinkColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderLeftColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderLeftColor() == b.borderLeftColor()
+        && a.visitedLinkBorderLeftColor() == b.visitedLinkBorderLeftColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyStrokeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    const SVGComputedStyle& aSVG = a.svgStyle();
+    const SVGComputedStyle& bSVG = b.svgStyle();
+    return aSVG.strokePaintType() == bSVG.strokePaintType()
+        && (aSVG.strokePaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.strokePaintColor() == bSVG.strokePaintColor())
+        && aSVG.visitedLinkStrokePaintType() == bSVG.visitedLinkStrokePaintType()
+        && (aSVG.visitedLinkStrokePaintType() != SVG_PAINTTYPE_RGBCOLOR || aSVG.visitedLinkStrokePaintColor() == bSVG.visitedLinkStrokePaintColor());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWillChangeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.willChangeProperties() == b.willChangeProperties();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskBoxImageSliceEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.maskBoxImageSlices() == b.maskBoxImageSlices();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundPositionYEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundPositionY>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundPositionXEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundPositionX>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundOriginEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundOrigin>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyColumnWidthEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.columnWidth() == b.columnWidth();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyCursorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.cursor() == b.cursor()
+        && (a.cursors() == b.cursors() || (a.cursors() && b.cursors() && *a.cursors() == *b.cursors()));
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyCounterIncrementEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    const CounterDirectiveMap* aMap = a.counterDirectives();
+    const CounterDirectiveMap* bMap = b.counterDirectives();
+
+    if (!aMap || !bMap)
+        return true;
+
+    if (!aMap) {
+        aMap = bMap;
+        bMap = nullptr;
+    }
+
+    for (const auto& aItem : *aMap) {
+        if (!aItem.value.isIncrement())
+            continue;
+
+        if (!bMap)
+            return false;
+
+        if (!bMap->contains(aItem.key))
+            return false;
+
+        const auto& bItem = bMap->get(aItem.key);
+        if (aItem.value.incrementValue() != bItem.incrementValue())
+            return false;
+    }
+
+    return true;
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundBlendModeEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundBlendMode>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundRepeatXEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyBackgroundRepeatX>(a.backgroundLayers(), b.backgroundLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderTopColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderTopColor() == b.borderTopColor()
+        && a.visitedLinkBorderTopColor() == b.visitedLinkBorderTopColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBackgroundColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.backgroundColor() == b.backgroundColor()
+        && a.visitedLinkBackgroundColor() == b.visitedLinkBackgroundColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitTextEmphasisColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.textEmphasisColor() == b.textEmphasisColor()
+        && a.visitedLinkTextEmphasisColor() == b.visitedLinkTextEmphasisColor();
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyZIndexEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.hasAutoZIndex() == b.hasAutoZIndex() && (a.hasAutoZIndex() || a.zIndex() == b.zIndex());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskRepeatYEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskRepeatY>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyWebkitMaskRepeatXEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return fillLayersEqual<CSSPropertyWebkitMaskRepeatX>(a.maskLayers(), b.maskLayers());
+}
+
+bool CSSPropertyEqualityCustom::CSSPropertyBorderBottomColorEqual(const ComputedStyle& a, const ComputedStyle& b)
+{
+    return a.borderBottomColor() == b.borderBottomColor()
+        && a.visitedLinkBorderBottomColor() == b.visitedLinkBorderBottomColor();
+}
+
+} // namespace blink