A bit of misc cleanup.

gm/system_preferences_mac.mm

-/*
- * Copyright 2012 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "system_preferences.h"
-
-#import <Cocoa/Cocoa.h>
-
-void setSystemPreferences() {
-    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-
-    // Set LCD font smoothing level for this application (does not affect other
-    // applications). Based on resetDefaultsToConsistentValues() in
-    // http://trac.webkit.org/browser/trunk/Tools/DumpRenderTree/mac/DumpRenderTree.mm
-    enum {
-        NoFontSmoothing     = 0,
-        LightFontSmoothing  = 1,
-        MediumFontSmoothing = 2,
-        StrongFontSmoothing = 3,
-    };
-    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
-    [defaults setInteger:MediumFontSmoothing forKey:@"AppleFontSmoothing"];
-
-    [pool release];
-}