Update from chromium https://crrev.com/301315

base/mac/mac_util.mm

 // Copyright (c) 2012 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 "base/mac/mac_util.h"
 
 #import <Cocoa/Cocoa.h>
 #import <IOKit/IOKitLib.h>
 
 #include <errno.h>
@@ skipping 207 matching lines @@
   SetUIMode();
 }
 
 void SetCursorVisibility(bool visible) {
   if (visible)
     [NSCursor unhide];
   else
     [NSCursor hide];
 }
 
-bool ShouldWindowsMiniaturizeOnDoubleClick() {
-  // We use an undocumented method in Cocoa; if it doesn't exist, default to
-  // |true|. If it ever goes away, we can do (using an undocumented pref key):
-  //   NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
-  //   return ![defaults objectForKey:@"AppleMiniaturizeOnDoubleClick"] ||
-  //          [defaults boolForKey:@"AppleMiniaturizeOnDoubleClick"];
-  BOOL methodImplemented =
-      [NSWindow respondsToSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
-  DCHECK(methodImplemented);
-  return !methodImplemented ||
-      [NSWindow performSelector:@selector(_shouldMiniaturizeOnDoubleClick)];
-}
-
 void ActivateProcess(pid_t pid) {
   ProcessSerialNumber process;
   OSStatus status = GetProcessForPID(pid, &process);
   if (status == noErr) {
     SetFrontProcess(&process);
   } else {
     OSSTATUS_DLOG(WARNING, status) << "Unable to get process for pid " << pid;
   }
 }
 
@@ skipping 347 matching lines @@
           StringPiece(begin + comma_loc + 1, ident.end()), &minor_tmp))
     return false;
   *type = ident.substr(0, number_loc);
   *major = major_tmp;
   *minor = minor_tmp;
   return true;
 }
 
 }  // namespace mac
 }  // namespace base