[DevTools] Adjust svg elements highlight to the root FrameView origin.

Source/core/testing/Internals.cpp

Index: Source/core/testing/Internals.cpp
diff --git a/Source/core/testing/Internals.cpp b/Source/core/testing/Internals.cpp
index b98434a4f89d5d3944e552b9fe5c4b9236ed41e7..b240f4c0ce28d1df11c6c105a0e2023d79263d8b 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -1487,6 +1487,16 @@ void Internals::setInspectorResourcesDataSizeLimits(int maximumResourcesContentS
     page->inspectorController().setResourcesDataSizeLimitsFromInternals(maximumResourcesContentSize, maximumSingleResourceContentSize);
 }
 
+String Internals::getInspectorHighlightJSON(Node* node, ExceptionState& exceptionState)
+{
+    Page* page = contextDocument()->frame()->page();
+    if (!page) {
+        exceptionState.throwDOMException(InvalidAccessError, "No page can be obtained from the current context document.");
+        return String();
+    }
+    return page->inspectorController().getHighlightJSONForNode(node);
+}
+
 bool Internals::hasGrammarMarker(Document* document, int from, int length)
 {
     ASSERT(document);