(NOT FOR REVIEW) Distinguish between touch and touchmove handler presence

public/web/WebWidgetClient.h

Index: public/web/WebWidgetClient.h
diff --git a/public/web/WebWidgetClient.h b/public/web/WebWidgetClient.h
index c1ce416eb6c0355249171c581bc26725f8459619..8690657017b15e6706a2e45b44e91a7e9598f5cd 100644
--- a/public/web/WebWidgetClient.h
+++ b/public/web/WebWidgetClient.h
@@ -154,6 +154,9 @@ public:
     // Called to update if touch events should be sent.
     virtual void hasTouchEventHandlers(bool) { }
 
+    // Called to update if touch move events should be sent.
+    virtual void hasTouchMoveEventHandlers(bool) { }
+
     // Called during WebWidget::HandleInputEvent for a TouchStart event to inform the embedder
     // of the touch actions that are permitted for this touch.
     virtual void setTouchAction(WebTouchAction touchAction) { }