Use Position instead of VisiblePosition for SurroundingText.

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 eb48a0c2f7d3ad6bb64d350b5536b3d8d0067ee8..6ed921e2abe9549d79ce104e867078d8e64e9880 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -73,7 +73,6 @@
 #include "core/editing/PlainTextRange.h"
 #include "core/editing/SpellCheckRequester.h"
 #include "core/editing/SpellChecker.h"
-#include "core/editing/SurroundingText.h"
 #include "core/editing/TextIterator.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceFetcher.h"
@@ -2334,15 +2333,6 @@ void Internals::setValueForUser(Element* element, const String& value)
     toHTMLInputElement(element)->setValueForUser(value);
 }
 
-String Internals::textSurroundingNode(Node* node, int x, int y, unsigned long maxLength)
-{
-    if (!node)
-        return String();
-    blink::WebPoint point(x, y);
-    SurroundingText surroundingText(VisiblePosition(node->renderer()->positionForPoint(static_cast<IntPoint>(point))), maxLength);
-    return surroundingText.content();
-}
-
 void Internals::setFocused(bool focused)
 {
     frame()->page()->focusController().setFocused(focused);