chrome/browser should build on the x86_64 architecture

third_party/mozilla/NSWorkspace+Utils.m

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* ***** BEGIN LICENSE BLOCK *****
  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  *
  * The contents of this file are subject to the Mozilla Public License Version
  * 1.1 (the "License"); you may not use this file except in compliance with
  * the License. You may obtain a copy of the License at
  * http://www.mozilla.org/MPL/
  *
  * Software distributed under the License is distributed on an "AS IS" basis,
@@ skipping 146 matching lines @@
 }
 
 //
 // +systemVersion
 //
 // Returns the host's OS version as returned by the 'sysv' gestalt selector,
 // 10.x.y = 0x000010xy
 //
 + (long)systemVersion
 {
-  static long sSystemVersion = 0;
+  static SInt32 sSystemVersion = 0;
   if (!sSystemVersion)
     Gestalt(gestaltSystemVersion, &sSystemVersion);
-  return sSystemVersion;
+  return (long)sSystemVersion;
 }
 
 //
 // +isLeopardOrHigher
 //
 // returns YES if we're on 10.5 or better
 //
 + (BOOL)isLeopardOrHigher
 {
 #if MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_4
   return YES;
 #else
   return [self systemVersion] >= 0x1050;
 #endif
 }
 
 @end