Use TreeScope::completeURL and baseURL instead of the Document versions

Source/core/svg/SVGAElement.cpp

Index: Source/core/svg/SVGAElement.cpp
diff --git a/Source/core/svg/SVGAElement.cpp b/Source/core/svg/SVGAElement.cpp
index c53f8bca593a492db0964fcf739676c627e3de93..e549f134c558a5ace1163060c6e6a44bbbe6e7ae 100644
--- a/Source/core/svg/SVGAElement.cpp
+++ b/Source/core/svg/SVGAElement.cpp
@@ -175,7 +175,7 @@ void SVGAElement::defaultEventHandler(Event* event)
             Frame* frame = document().frame();
             if (!frame)
                 return;
-            FrameLoadRequest frameRequest(&document(), ResourceRequest(document().completeURL(url)), target);
+            FrameLoadRequest frameRequest(&document(), ResourceRequest(treeScope().completeURL(url)), target);
             frameRequest.setTriggeringEvent(event);
             frame->loader().load(frameRequest);
             return;