Replace SVGDocument by XMLDocument

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index 2c57862dcc21a9a1e890935f48db0ffca70a537c..2481c9d2e85ee80e1f0e59a5d58e20e57229d9b1 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -84,7 +84,7 @@
 #include "core/rendering/RenderWidget.h"
 #include "core/rendering/style/CursorList.h"
 #include "core/rendering/style/RenderStyle.h"
-#include "core/svg/SVGDocument.h"
+#include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGUseElement.h"
 #include "platform/PlatformGestureEvent.h"
 #include "platform/PlatformKeyboardEvent.h"
@@ -585,11 +585,10 @@ bool EventHandler::handleMousePressEvent(const MouseEventWithHitTestResults& eve
     if (event.isOverWidget() && passWidgetMouseDownEventToWidget(event))
         return true;
 
-    if (m_frame->document()->isSVGDocument()
-        && toSVGDocument(m_frame->document())->zoomAndPanEnabled()) {
+    if (m_frame->document()->isSVGDocument() && m_frame->document()->accessSVGExtensions().zoomAndPanEnabled()) {
         if (event.event().shiftKey() && singleClick) {
             m_svgPan = true;
-            toSVGDocument(m_frame->document())->startPan(m_frame->view()->windowToContents(event.event().position()));
+            m_frame->document()->accessSVGExtensions().startPan(m_frame->view()->windowToContents(event.event().position()));
             return true;
         }
     }
@@ -1395,7 +1394,7 @@ bool EventHandler::handleMouseMoveOrLeaveEvent(const PlatformMouseEvent& mouseEv
     cancelFakeMouseMoveEvent();
 
     if (m_svgPan) {
-        toSVGDocument(m_frame->document())->updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
+        m_frame->document()->accessSVGExtensions().updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
         return true;
     }
 
@@ -1525,7 +1524,7 @@ bool EventHandler::handleMouseReleaseEvent(const PlatformMouseEvent& mouseEvent)
 
     if (m_svgPan) {
         m_svgPan = false;
-        toSVGDocument(m_frame->document())->updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
+        m_frame->document()->accessSVGExtensions().updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
         return true;
     }