Move slider implemention to use pointer capture

third_party/WebKit/Source/core/html/forms/InputTypeView.h

Index: third_party/WebKit/Source/core/html/forms/InputTypeView.h
diff --git a/third_party/WebKit/Source/core/html/forms/InputTypeView.h b/third_party/WebKit/Source/core/html/forms/InputTypeView.h
index e7c3a1f0833a7fc37ab309d7751cb11c2369e42f..eb7cdad5d07b36c31aa9216b93015487cbef504c 100644
--- a/third_party/WebKit/Source/core/html/forms/InputTypeView.h
+++ b/third_party/WebKit/Source/core/html/forms/InputTypeView.h
@@ -55,6 +55,7 @@ class KeyboardEvent;
 class MouseEvent;
 class LayoutObject;
 class ComputedStyle;
+class PointerEvent;
 
 class ClickHandlingState final : public EventDispatchHandlingState {
  public:
@@ -81,7 +82,7 @@ class CORE_EXPORT InputTypeView : public GarbageCollectedMixin {
   // Event handling functions
 
   virtual void handleClickEvent(MouseEvent*);
-  virtual void handleMouseDownEvent(MouseEvent*);
+  virtual void handlePointerDownEvent(PointerEvent*);
   virtual ClickHandlingState* willDispatchClick();
   virtual void didDispatchClick(Event*, const ClickHandlingState&);
   virtual void handleKeydownEvent(KeyboardEvent*);