Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/svg/SVGMaskElement.cpp

Index: Source/core/svg/SVGMaskElement.cpp
diff --git a/Source/core/svg/SVGMaskElement.cpp b/Source/core/svg/SVGMaskElement.cpp
index 2726fc1cb86a3fcc28fc04dfaff7f379359fe478..ecae018ebaac6552c5958dcb486a442ae9884df3 100644
--- a/Source/core/svg/SVGMaskElement.cpp
+++ b/Source/core/svg/SVGMaskElement.cpp
@@ -53,7 +53,7 @@ BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGMaskElement)
     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGTests)
 END_REGISTER_ANIMATED_PROPERTIES
 
-inline SVGMaskElement::SVGMaskElement(const QualifiedName& tagName, Document* document)
+inline SVGMaskElement::SVGMaskElement(const QualifiedName& tagName, Document& document)
     : SVGElement(tagName, document)
     , m_maskUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
     , m_maskContentUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
@@ -69,7 +69,7 @@ inline SVGMaskElement::SVGMaskElement(const QualifiedName& tagName, Document* do
     registerAnimatedPropertiesForSVGMaskElement();
 }
 
-PassRefPtr<SVGMaskElement> SVGMaskElement::create(const QualifiedName& tagName, Document* document)
+PassRefPtr<SVGMaskElement> SVGMaskElement::create(const QualifiedName& tagName, Document& document)
 {
     return adoptRef(new SVGMaskElement(tagName, document));
 }