Fix mouse cursor update timer to be page-global instead of per-frame

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 658cbabec7e1b8a367d2f835c0c565af9b653765..775c866cd01d1b45b4f737e50e9cca4e8ae4a7e8 100644
--- a/Source/core/testing/Internals.cpp
+++ b/Source/core/testing/Internals.cpp
@@ -1919,7 +1919,7 @@ String Internals::getCurrentCursorInfo(Document* document, ExceptionState& excep
         return String();
     }
 
-    Cursor cursor = document->frame()->eventHandler().currentMouseCursor();
+    Cursor cursor = frame()->page()->chrome().getLastSetCursorForTesting();
 
     StringBuilder result;
     result.appendLiteral("type=");