Ignore the |readonly| attribute in <input type=range>

third_party/WebKit/Source/core/html/shadow/SliderThumbElement.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 188 matching lines @@
 void SliderThumbElement::defaultEventHandler(Event* event) {
   if (!event->isMouseEvent()) {
     HTMLDivElement::defaultEventHandler(event);
     return;
   }
 
   // FIXME: Should handle this readonly/disabled check in more general way.
   // Missing this kind of check is likely to occur elsewhere if adding it in
   // each shadow element.
   HTMLInputElement* input = hostInput();
-  if (!input || input->isDisabledOrReadOnly()) {
+  if (!input || input->isDisabledFormControl()) {
     stopDragging();
     HTMLDivElement::defaultEventHandler(event);
     return;
   }
 
   MouseEvent* mouseEvent = toMouseEvent(event);
   bool isLeftButton = mouseEvent->button() ==
                       static_cast<short>(WebPointerProperties::Button::Left);
   const AtomicString& eventType = event->type();
 
@@ skipping 12 matching lines @@
     if (m_inDragMode)
       setPositionFromPoint(LayoutPoint(mouseEvent->absoluteLocation()));
     return;
   }
 
   HTMLDivElement::defaultEventHandler(event);
 }
 
 bool SliderThumbElement::willRespondToMouseMoveEvents() {
   const HTMLInputElement* input = hostInput();
-  if (input && !input->isDisabledOrReadOnly() && m_inDragMode)
+  if (input && !input->isDisabledFormControl() && m_inDragMode)
     return true;
 
   return HTMLDivElement::willRespondToMouseMoveEvents();
 }
 
 bool SliderThumbElement::willRespondToMouseClickEvents() {
   const HTMLInputElement* input = hostInput();
-  if (input && !input->isDisabledOrReadOnly())
+  if (input && !input->isDisabledFormControl())
     return true;
 
   return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
 void SliderThumbElement::detachLayoutTree(const AttachContext& context) {
   if (m_inDragMode) {
     if (LocalFrame* frame = document().frame())
       frame->eventHandler().setCapturingMouseEventsNode(nullptr);
   }
@@ skipping 59 matching lines @@
 
 void SliderContainerElement::defaultEventHandler(Event* event) {
   if (event->isTouchEvent()) {
     handleTouchEvent(toTouchEvent(event));
     return;
   }
 }
 
 void SliderContainerElement::handleTouchEvent(TouchEvent* event) {
   HTMLInputElement* input = hostInput();
-  if (input->isDisabledOrReadOnly())
+  if (input->isDisabledFormControl())
     return;
 
   if (event->type() == EventTypeNames::touchend) {
     input->dispatchFormControlChangeEvent();
     event->setDefaultHandled();
     m_slidingDirection = NoMove;
     m_touchStarted = false;
     return;
   }
 
@@ skipping 107 matching lines @@
   updateTouchEventHandlerRegistry();
   HTMLElement::didMoveToNewDocument(oldDocument);
 }
 
 void SliderContainerElement::removeAllEventListeners() {
   Node::removeAllEventListeners();
   m_hasTouchEventHandler = false;
 }
 
 }  // namespace blink