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

third_party/WebKit/Source/core/html/HTMLInputElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 36 matching lines @@
 
 class CORE_EXPORT HTMLInputElement : public HTMLTextFormControlElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static HTMLInputElement* create(Document&, HTMLFormElement*, bool createdByParser);
     ~HTMLInputElement() override;
     DECLARE_VIRTUAL_TRACE();
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitspeechchange);
 
+    enum TouchHandlerType {

[majidvp, 2016/08/03 18:01:06]

If this is only used in InputTypeView then it should move there.

Also, it appears that no HTLM Input ever uses 'Blocking' so we might as well
just use None, Passive.

+        None,
+        Blocking,
+        Passive
+    };
+
     bool shouldAutocomplete() const final;
 
     // For ValidityState
     bool hasBadInput() const final;
     bool patternMismatch() const final;
     bool rangeUnderflow() const final;
     bool rangeOverflow() const final;
     bool stepMismatch() const final;
     bool tooLong() const final;
     bool tooShort() const final;
@@ skipping 319 matching lines @@
     // https://html.spec.whatwg.org/multipage/forms.html#concept-input-checked-dirty-flag
     unsigned m_dirtyCheckedness : 1;
     unsigned m_isIndeterminate : 1;
     unsigned m_isActivatedSubmit : 1;
     unsigned m_autocomplete : 2; // AutoCompleteSetting
     unsigned m_hasNonEmptyList : 1;
     unsigned m_stateRestored : 1;
     unsigned m_parsingInProgress : 1;
     unsigned m_valueAttributeWasUpdatedAfterParsing : 1;
     unsigned m_canReceiveDroppedFiles : 1;
-    unsigned m_hasTouchEventHandler : 1;
     unsigned m_shouldRevealPassword : 1;
     unsigned m_needsToUpdateViewValue : 1;
     unsigned m_isPlaceholderVisible : 1;
+    TouchHandlerType m_hasTouchEventHandler : Blocking;

[majidvp, 2016/08/03 18:01:06]

Why do you need to keep this value as a member variable?

Also ": Blocking" does not make much sense here. The value after ':' 
defines the bit size for that variable. In this case you would have
used '2'.

see: http://en.cppreference.com/w/cpp/language/bit_field

     Member<InputType> m_inputType;
     Member<InputTypeView> m_inputTypeView;
     // The ImageLoader must be owned by this element because the loader code assumes
     // that it lives as long as its owning element lives. If we move the loader into
     // the ImageInput object we may delete the loader while this element lives on.
     Member<HTMLImageLoader> m_imageLoader;
     Member<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 };
 
 } // namespace blink
 
 #endif // HTMLInputElement_h