Get rid of multiple inheritence for SVGViewElement interface

LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js

Index: LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js
diff --git a/LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js b/LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js
index 243b56d6f17fe8f3ab17fe71dd31da2d3454d111..ca1ac71c0381d3a6c9892578d6d3d4e8cf6cb73c 100644
--- a/LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js
+++ b/LayoutTests/svg/dom/script-tests/SVGViewSpec-defaults.js
@@ -11,7 +11,7 @@ debug("");
 debug("Check initial SVGSVGElement.currentView values on a SVGSVGElement");
 shouldBe("currentView.transform.numberOfItems", "0");
 shouldBeNull("currentView.viewTarget");
-shouldBe("currentView.zoomAndPan", "SVGZoomAndPan.SVG_ZOOMANDPAN_MAGNIFY");
+shouldBe("currentView.zoomAndPan", "SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY");
 shouldBe("currentView.viewBox.baseVal.x", "0");
 shouldBe("currentView.viewBox.baseVal.y", "0");
 shouldBe("currentView.viewBox.baseVal.width", "0");
@@ -22,12 +22,12 @@ shouldBeEqualToString("currentView.viewBoxString", "0 0 0 0");
 shouldBeEqualToString("currentView.preserveAspectRatioString", "xMidYMid meet");
 shouldBeEqualToString("currentView.transformString", "");
 shouldBeEqualToString("currentView.viewTargetString", "");
-shouldBe("currentView.zoomAndPan", "SVGZoomAndPan.SVG_ZOOMANDPAN_MAGNIFY");
+shouldBe("currentView.zoomAndPan", "SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY");
 
 debug("");
-debug("Try changing zoomAndPan - none of these will work, as SVGViewSpec is fully readonly - even the animated properties it inherits from parent classes like SVGZoomAndPan/SVGFitToViewBox");
-shouldThrow("currentView.zoomAndPan = SVGZoomAndPan.SVG_ZOOMANDPAN_DISABLE");
-shouldBe("currentView.zoomAndPan", "SVGZoomAndPan.SVG_ZOOMANDPAN_MAGNIFY");
+debug("Try changing zoomAndPan - none of these will work, as SVGViewSpec is fully readonly - even the animated properties it inherits from supplmental classes like SVGViewElement/SVGFitToViewBox");
+shouldThrow("currentView.zoomAndPan = SVGViewElement.SVG_ZOOMANDPAN_DISABLE");
+shouldBe("currentView.zoomAndPan", "SVGViewElement.SVG_ZOOMANDPAN_MAGNIFY");
 
 debug("");
 debug("Try changing viewBox - this has no affect on the SVGSVGElement the viewSpec belongs to - it exposed all its properties as read-only");