Initial commit for Chrome metainstaller on Mac.

chrome/installer/mac/app/SystemInfo.m

+// 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 <mach-o/arch.h>
+
+#import "SystemInfo.h"
+
+@implementation SystemInfo
+
++ (NSString*)getArch {
+  const NXArchInfo* arch = NXGetLocalArchInfo();
+  NSString* archName = [NSString stringWithUTF8String:arch->name];
+  return archName;
+}
+
++ (NSString*)getOSVersion {
+  NSDictionary* systemVersion =
+      [NSDictionary dictionaryWithContentsOfFile:
+                        @"/System/Library/CoreServices/SystemVersion.plist"];
+  NSString* versionNumber = [systemVersion objectForKey:@"ProductVersion"];
+
+  return versionNumber;
+}
+
+@end