Add support for additional blend modes to SVGFEBlendElement

Source/core/svg/SVGFEBlendElement.cpp

Index: Source/core/svg/SVGFEBlendElement.cpp
diff --git a/Source/core/svg/SVGFEBlendElement.cpp b/Source/core/svg/SVGFEBlendElement.cpp
index 7075f6e7ebf2befc68cb9c4f09052f65c9db7270..3033feea749c95c133a9b4d4322f8bc198213aea 100644
--- a/Source/core/svg/SVGFEBlendElement.cpp
+++ b/Source/core/svg/SVGFEBlendElement.cpp
@@ -31,21 +31,32 @@ namespace blink {
 
 static WebBlendMode toWebBlendMode(SVGFEBlendElement::Mode mode)
 {
+#define MAP_BLEND_MODE(MODENAME)            \
+    case SVGFEBlendElement::Mode##MODENAME: \
+        return WebBlendMode##MODENAME
+
     switch (mode) {
-    case SVGFEBlendElement::ModeNormal:
-        return WebBlendModeNormal;
-    case SVGFEBlendElement::ModeMultiply:
-        return WebBlendModeMultiply;
-    case SVGFEBlendElement::ModeScreen:
-        return WebBlendModeScreen;
-    case SVGFEBlendElement::ModeDarken:
-        return WebBlendModeDarken;
-    case SVGFEBlendElement::ModeLighten:
-        return WebBlendModeLighten;
+        MAP_BLEND_MODE(Normal);
+        MAP_BLEND_MODE(Multiply);
+        MAP_BLEND_MODE(Screen);
+        MAP_BLEND_MODE(Darken);
+        MAP_BLEND_MODE(Lighten);
+        MAP_BLEND_MODE(Overlay);
+        MAP_BLEND_MODE(ColorDodge);
+        MAP_BLEND_MODE(ColorBurn);
+        MAP_BLEND_MODE(HardLight);
+        MAP_BLEND_MODE(SoftLight);
+        MAP_BLEND_MODE(Difference);
+        MAP_BLEND_MODE(Exclusion);
+        MAP_BLEND_MODE(Hue);
+        MAP_BLEND_MODE(Saturation);
+        MAP_BLEND_MODE(Color);
+        MAP_BLEND_MODE(Luminosity);
     default:
         ASSERT_NOT_REACHED();
         return WebBlendModeNormal;
     }
+#undef MAP_BLEND_MODE
 }
 
 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGFEBlendElement::Mode>()
@@ -57,10 +68,26 @@ template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGFEBlendE
         entries.append(std::make_pair(SVGFEBlendElement::ModeScreen, "screen"));
         entries.append(std::make_pair(SVGFEBlendElement::ModeDarken, "darken"));
         entries.append(std::make_pair(SVGFEBlendElement::ModeLighten, "lighten"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeOverlay, "overlay"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeColorDodge, "color-dodge"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeColorBurn, "color-burn"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeHardLight, "hard-light"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeSoftLight, "soft-light"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeDifference, "difference"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeExclusion, "exclusion"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeHue, "hue"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeSaturation, "saturation"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeColor, "color"));
+        entries.append(std::make_pair(SVGFEBlendElement::ModeLuminosity, "luminosity"));
     }
     return entries;
 }
 
+template<> unsigned short getMaxExposedEnumValue<SVGFEBlendElement::Mode>()
+{
+    return SVGFEBlendElement::ModeLighten;
+}
+
 inline SVGFEBlendElement::SVGFEBlendElement(Document& document)
     : SVGFilterPrimitiveStandardAttributes(SVGNames::feBlendTag, document)
     , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))