Move slider implemention to use pointer capture

third_party/WebKit/Source/core/html/forms/RangeInputType.cpp

Index: third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
diff --git a/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp b/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
index d67be4f11948261b48c0ffedaea89485069d91f8..b24700293578bc3654f8fac1378a5348450c2b5a 100644
--- a/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
@@ -31,6 +31,7 @@
 
 #include "core/html/forms/RangeInputType.h"
 
+#include <limits>
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/HTMLNames.h"
 #include "core/InputTypeNames.h"
@@ -39,6 +40,7 @@
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/events/KeyboardEvent.h"
 #include "core/events/MouseEvent.h"
+#include "core/events/PointerEvent.h"
 #include "core/events/ScopedEventQueue.h"
 #include "core/html/HTMLDataListElement.h"
 #include "core/html/HTMLDataListOptionsCollection.h"
@@ -52,7 +54,6 @@
 #include "core/layout/LayoutSlider.h"
 #include "wtf/MathExtras.h"
 #include "wtf/NonCopyingSort.h"
-#include <limits>
 
 namespace blink {
 
@@ -148,7 +149,7 @@ bool RangeInputType::isSteppable() const {
   return true;
 }
 
-void RangeInputType::handleMouseDownEvent(MouseEvent* event) {
+void RangeInputType::handlePointerDownEvent(PointerEvent* event) {
   if (element().isDisabledFormControl())
     return;
 
@@ -164,7 +165,7 @@ void RangeInputType::handleMouseDownEvent(MouseEvent* event) {
   SliderThumbElement* thumb = sliderThumbElement();
   if (targetNode == thumb)
     return;
-  thumb->dragFrom(LayoutPoint(event->absoluteLocation()));
+  thumb->dragFrom(event);
 }
 
 void RangeInputType::handleKeydownEvent(KeyboardEvent* event) {
@@ -314,7 +315,7 @@ void RangeInputType::warnIfValueIsInvalid(const String& value) const {
 
 void RangeInputType::disabledAttributeChanged() {
   if (element().isDisabledFormControl())
-    sliderThumbElement()->stopDragging();
+    sliderThumbElement()->releasePointerCapture();
 }
 
 bool RangeInputType::shouldRespectListAttribute() {