Remove deprecated methods PathFromFSRef and FSRefFromPath.

ui/gfx/animation/animation_mac.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/animation/animation.h"
 
+#import <Foundation/Foundation.h>
+
 #include "base/mac/mac_util.h"
 #include "base/message_loop/message_loop.h"
 
 namespace gfx {
 
 // static
 bool Animation::ScrollAnimationsEnabledBySystem() {
   // Because of sandboxing, OS settings should only be queried from the browser
   // process.
   DCHECK(base::MessageLoopForUI::IsCurrent() ||
       base::MessageLoopForIO::IsCurrent());
 
   bool enabled = false;
   id value = nil;
   value = [[NSUserDefaults standardUserDefaults]
       objectForKey:@"NSScrollAnimationEnabled"];
   if (value)
     enabled = [value boolValue];
   return enabled;
 }
 
 } // namespace gfx