CSSStyleDeclaration::setProperty should override important style

Source/core/css/StylePropertySet.cpp

Index: Source/core/css/StylePropertySet.cpp
diff --git a/Source/core/css/StylePropertySet.cpp b/Source/core/css/StylePropertySet.cpp
index 310c2a543c87b6d3dad8f560b3fe8410f56ad5d3..5707a1bd2e9b9f2f59b074298b7ddf39c472dd9d 100644
--- a/Source/core/css/StylePropertySet.cpp
+++ b/Source/core/css/StylePropertySet.cpp
@@ -314,10 +314,7 @@ bool MutableStylePropertySet::addParsedProperties(const WillBeHeapVector<CSSProp
 
 bool MutableStylePropertySet::addParsedProperty(const CSSProperty& property)

[Timothy Loh, 2015/04/24 00:35:05]

Other functions call this and expect it to do what it currently does (see
failing tests). Maybe makes more sense to rename this to something like
addRespectingCascade and call setProperty directly in the relevant places.

 {
-    // Only add properties that have no !important counterpart present
-    if (!propertyIsImportant(property.id()) || property.isImportant())
-        return setProperty(property);
-    return false;
+    return setProperty(property);
 }
 
 String StylePropertySet::asText() const