Remove the blocking touch handlers for the input[type=range] and add touch-action instead

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 e91b6744e21b01b7d9fde5abab14d158326bc22a..e68d715e0f5a7f3fbbc45c73106d74dd28ddb4cb 100644
--- a/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/RangeInputType.cpp
@@ -151,6 +151,11 @@ bool RangeInputType::isSteppable() const
     return true;
 }
 
+bool RangeInputType::hasPassiveTouchEventHandler() const
+{
+    return true;
+}
+
 void RangeInputType::handleMouseDownEvent(MouseEvent* event)
 {
     if (element().isDisabledOrReadOnly())
@@ -168,29 +173,6 @@ void RangeInputType::handleMouseDownEvent(MouseEvent* event)
     thumb->dragFrom(event->absoluteLocation());
 }
 
-void RangeInputType::handleTouchEvent(TouchEvent* event)
-{
-    if (element().isDisabledOrReadOnly())
-        return;
-
-    if (event->type() == EventTypeNames::touchend) {
-        element().dispatchFormControlChangeEvent();
-        event->setDefaultHandled();
-        return;
-    }
-
-    TouchList* touches = event->targetTouches();
-    if (touches->length() == 1) {
-        sliderThumbElement()->setPositionFromPoint(touches->item(0)->absoluteLocation());
-        event->setDefaultHandled();
-    }
-}
-
-bool RangeInputType::hasTouchEventHandler() const
-{
-    return true;
-}
-
 void RangeInputType::handleKeydownEvent(KeyboardEvent* event)
 {
     if (element().isDisabledOrReadOnly())
@@ -262,6 +244,7 @@ void RangeInputType::createShadowSubtree()
     track->appendChild(SliderThumbElement::create(document));
     HTMLElement* container = SliderContainerElement::create(document);
     container->appendChild(track);
+    container->setAttribute(idAttr, ShadowElementNames::sliderContainer());
     element().userAgentShadowRoot()->appendChild(container);
 }