Move logic to turn off caret blinking for LayoutTests to LayoutTheme.

third_party/WebKit/Source/core/layout/LayoutThemeDefault.h

 /*
  * This file is part of the WebKit project.
  *
  * Copyright (C) 2006 Apple Computer, Inc.
  * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
  * Copyright (C) 2007 Holger Hans Peter Freyther
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008, 2009 Google, Inc.
  * All rights reserved.
  * Copyright (C) 2009 Kenneth Rohde Christiansen
@@ skipping 64 matching lines @@
   Color platformTapHighlightColor() const override {
     return Color(defaultTapHighlightColor);
   }
 
   // A method asking if the theme's controls actually care about redrawing
   // when hovered.
   bool supportsHover(const ComputedStyle&) const final;
 
   Color platformFocusRingColor() const override;
 
-  double caretBlinkInterval() const final;
-
   // System fonts.
   virtual void systemFont(CSSValueID systemFontID,
                           FontStyle&,
                           FontWeight&,
                           float& fontSize,
                           AtomicString& fontFamily) const;
 
   int minimumMenuListSize(const ComputedStyle&) const override;
 
   void adjustSearchFieldStyle(ComputedStyle&) const override;
@@ skipping 54 matching lines @@
   static unsigned m_activeSelectionForegroundColor;
   static unsigned m_inactiveSelectionBackgroundColor;
   static unsigned m_inactiveSelectionForegroundColor;
 
   ThemePainterDefault m_painter;
 };
 
 }  // namespace blink
 
 #endif  // LayoutThemeDefault_h