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 7a7d9d32f284f16d4cf130e72ac92ab40fd4932d..1834a6ed747b8444185769bcba4cf841f0ade603 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/SVGElementInstance.h"
 #include "core/svg/SVGUseElement.h"
 #include "platform/PlatformGestureEvent.h"
@@ -587,11 +587,10 @@ 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()->svgExtensions() && m_frame->document()->svgExtensions()->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()));

[pdr., 2014/05/03 21:35:30]

This isn't necessary. Instead of checking for svgExtensions and then using
accessSVGExtensions, we should just use accessSVGExtensions.

             return true;
         }
     }
@@ -1397,7 +1396,7 @@ bool EventHandler::handleMouseMoveOrLeaveEvent(const PlatformMouseEvent& mouseEv
     cancelFakeMouseMoveEvent();
 
     if (m_svgPan) {
-        toSVGDocument(m_frame->document())->updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
+        m_frame->document()->svgExtensions()->updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));

[pdr., 2014/05/03 21:35:30]

accessSVGExtensions (here, and elsewhere)

         return true;
     }
 
@@ -1527,7 +1526,7 @@ 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()->svgExtensions()->updatePan(m_frame->view()->windowToContents(m_lastKnownMousePosition));
         return true;
     }