HTML Media Capture: update capture attribute to use string.

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 227 matching lines @@
   void UpdateView();
   bool NeedsToUpdateViewValue() const { return needs_to_update_view_value_; }
   void SetInnerEditorValue(const String&) override;
 
   // For test purposes.
   void SelectColorInColorChooser(const Color&);
   void EndColorChooser();
 
   String DefaultToolTip() const override;
 
+  CaptureFacingMode capture() const;
+  void setCapture(const AtomicString& value);
+
   unsigned height() const;
   unsigned width() const;
   void setHeight(unsigned);
   void setWidth(unsigned);
 
   void blur() final;
   void DefaultBlur();
 
   const AtomicString& GetName() const final;
 
@@ skipping 170 matching lines @@
   // element lives on.
   Member<HTMLImageLoader> image_loader_;
   Member<ListAttributeTargetObserver> list_attribute_target_observer_;
 
   FRIEND_TEST_ALL_PREFIXES(HTMLInputElementTest, RadioKeyDownDCHECKFailure);
 };
 
 }  // namespace blink
 
 #endif  // HTMLInputElement_h