Add paint() function as valid CSS <image> type.

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

 /*
  * Copyright (C) 2008 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
  * 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 "core/css/CSSImageGeneratorValue.h"
 
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSGradientValue.h"
+#include "core/css/CSSPaintValue.h"
 #include "platform/graphics/Image.h"
 
 namespace blink {
 
 CSSImageGeneratorValue::CSSImageGeneratorValue(ClassType classType)
     : CSSValue(classType)
 {
 }
 
 CSSImageGeneratorValue::~CSSImageGeneratorValue()
@@ skipping 85 matching lines @@
     m_images.add(size, image);
 }
 
 PassRefPtr<Image> CSSImageGeneratorValue::image(const LayoutObject* layoutObject, const IntSize& size)
 {
     switch (getClassType()) {
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->image(layoutObject, size);
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->image(layoutObject, size);
+    case PaintClass:
+        return toCSSPaintValue(this)->image(layoutObject, size);
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->image(layoutObject, size);
     default:
         ASSERT_NOT_REACHED();
     }
     return nullptr;
 }
 
 bool CSSImageGeneratorValue::isFixedSize() const
 {
     switch (getClassType()) {
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->isFixedSize();
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->isFixedSize();
+    case PaintClass:
+        return toCSSPaintValue(this)->isFixedSize();
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->isFixedSize();
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 IntSize CSSImageGeneratorValue::fixedSize(const LayoutObject* layoutObject, const FloatSize& defaultObjectSize)
 {
     switch (getClassType()) {
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->fixedSize(layoutObject, defaultObjectSize);
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->fixedSize(layoutObject);
+    case PaintClass:
+        return toCSSPaintValue(this)->fixedSize(layoutObject);
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->fixedSize(layoutObject);
     default:
         ASSERT_NOT_REACHED();
     }
     return IntSize();
 }
 
 bool CSSImageGeneratorValue::isPending() const
 {
     switch (getClassType()) {
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->isPending();
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->isPending();
+    case PaintClass:
+        return toCSSPaintValue(this)->isPending();
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->isPending();
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 bool CSSImageGeneratorValue::knownToBeOpaque(const LayoutObject* layoutObject) const
 {
     switch (getClassType()) {
     case CrossfadeClass:
         return toCSSCrossfadeValue(this)->knownToBeOpaque(layoutObject);
     case LinearGradientClass:
         return toCSSLinearGradientValue(this)->knownToBeOpaque(layoutObject);
+    case PaintClass:
+        return toCSSPaintValue(this)->knownToBeOpaque(layoutObject);
     case RadialGradientClass:
         return toCSSRadialGradientValue(this)->knownToBeOpaque(layoutObject);
     default:
         ASSERT_NOT_REACHED();
     }
     return false;
 }
 
 void CSSImageGeneratorValue::loadSubimages(Document* document)
 {
     switch (getClassType()) {
     case CrossfadeClass:
         toCSSCrossfadeValue(this)->loadSubimages(document);
         break;
     case LinearGradientClass:
         toCSSLinearGradientValue(this)->loadSubimages(document);
         break;
+    case PaintClass:
+        toCSSPaintValue(this)->loadSubimages(document);
+        break;
     case RadialGradientClass:
         toCSSRadialGradientValue(this)->loadSubimages(document);
         break;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace blink