Have HTMLElements / SVGElements constructors take a Document reference in argument

Source/core/svg/SVGFEMergeNodeElement.cpp

Index: Source/core/svg/SVGFEMergeNodeElement.cpp
diff --git a/Source/core/svg/SVGFEMergeNodeElement.cpp b/Source/core/svg/SVGFEMergeNodeElement.cpp
index 508c60b31f2ce2ae142a47fded288dd03e12cf0d..648f22e81dd74406e8c3d474754d3f751f94b560 100644
--- a/Source/core/svg/SVGFEMergeNodeElement.cpp
+++ b/Source/core/svg/SVGFEMergeNodeElement.cpp
@@ -35,7 +35,7 @@ BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGFEMergeNodeElement)
     REGISTER_LOCAL_ANIMATED_PROPERTY(in1)
 END_REGISTER_ANIMATED_PROPERTIES
 
-inline SVGFEMergeNodeElement::SVGFEMergeNodeElement(const QualifiedName& tagName, Document* document)
+inline SVGFEMergeNodeElement::SVGFEMergeNodeElement(const QualifiedName& tagName, Document& document)
     : SVGElement(tagName, document)
 {
     ASSERT(hasTagName(SVGNames::feMergeNodeTag));
@@ -43,7 +43,7 @@ inline SVGFEMergeNodeElement::SVGFEMergeNodeElement(const QualifiedName& tagName
     registerAnimatedPropertiesForSVGFEMergeNodeElement();
 }
 
-PassRefPtr<SVGFEMergeNodeElement> SVGFEMergeNodeElement::create(const QualifiedName& tagName, Document* document)
+PassRefPtr<SVGFEMergeNodeElement> SVGFEMergeNodeElement::create(const QualifiedName& tagName, Document& document)
 {
     return adoptRef(new SVGFEMergeNodeElement(tagName, document));
 }