Remove unused Mac platform code.

Source/platform/mac/ColorMac.mm

 /*
  * Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 15 matching lines @@
 #import "config.h"
 #import "platform/mac/ColorMac.h"
 
 #import <wtf/RetainPtr.h>
 #import <wtf/StdLibExtras.h>
 
 namespace WebCore {
 
 // NSColor calls don't throw, so no need to block Cocoa exceptions in this file
 
-static bool useOldAquaFocusRingColor;
-
-RGBA32 oldAquaFocusRingColor()
-{
-    return 0xFF7DADD9;
-}
-
-void setUsesTestModeFocusRingColor(bool newValue)
-{
-    useOldAquaFocusRingColor = newValue;
-}
-
-bool usesTestModeFocusRingColor()
-{
-    return useOldAquaFocusRingColor;
-}
-
-static RGBA32 makeRGBAFromNSColor(NSColor *c)
-{
-    CGFloat redComponent;
-    CGFloat greenComponent;
-    CGFloat blueComponent;
-    CGFloat alpha;
-    [c getRed:&redComponent green:&greenComponent blue:&blueComponent alpha:&alpha];
-
-    return makeRGBA(255 * redComponent, 255 * greenComponent, 255 * blueComponent, 255 * alpha);
-}
-
-Color colorFromNSColor(NSColor *c)
-{
-    return Color(makeRGBAFromNSColor(c));
-}
-
 NSColor *nsColor(const Color& color)
 {
     RGBA32 c = color.rgb();
     switch (c) {
         case 0: {
             // Need this to avoid returning nil because cachedRGBAValues will default to 0.
             DEFINE_STATIC_LOCAL(RetainPtr<NSColor>, clearColor, ([NSColor colorWithDeviceRed:0 green:0 blue:0 alpha:0]));
             return clearColor.get();
         }
         case Color::black: {
@@ skipping 24 matching lines @@
             cachedColors[cursor] = result;
             if (++cursor == cacheSize)
                 cursor = 0;
             return result;
         }
     }
 }
 
 
 } // namespace WebCore