Implement autocapitalize in Blink to be used by the embedder.

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 317 matching lines @@
     bool tooLong(const String&, NeedsToCheckDirtyFlag) const;
     bool tooShort(const String&, NeedsToCheckDirtyFlag) const;
 
     virtual bool supportsPlaceholder() const override final;
     virtual void updatePlaceholderText() override final;
     virtual bool isEmptyValue() const override final { return innerEditorValue().isEmpty(); }
     virtual bool isEmptySuggestedValue() const override final { return suggestedValue().isEmpty(); }
     virtual void handleFocusEvent(Element* oldFocusedElement, WebFocusType) override final;
     virtual void handleBlurEvent() override final;
     virtual void dispatchFocusInEvent(const AtomicString& eventType, Element* oldFocusedElement, WebFocusType) override final;
+    virtual bool supportsAutocapitalize() const override final;
+    virtual TextFieldAutocapitalize defaultAutocapitalizeValue() const override final;
 
     virtual bool isOptionalFormControl() const override final { return !isRequiredFormControl(); }
     virtual bool isRequiredFormControl() const override final;
     virtual bool recalcWillValidate() const override final;
     virtual void requiredAttributeChanged() override final;
 
     void updateTouchEventHandlerRegistry();
     void initializeTypeInParsing();
     void updateType();
 
@@ skipping 38 matching lines @@
     // 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.
     OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
     OwnPtrWillBeMember<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 };
 
 } // namespace blink
 
 #endif // HTMLInputElement_h