base::mac::IsOSSierra() -> base::mac::IsOS10_12(), etc.

content/common/sandbox_mac.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 "content/common/sandbox_mac.h"
 
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 453 matching lines @@
 
   std::string quoted_home_dir;
   if (!QuotePlainString(home_dir_canonical.value(), &quoted_home_dir)) {
     FatalStringQuoteException(home_dir_canonical.value());
     return false;
   }
 
   if (!compiler.InsertStringParam("USER_HOMEDIR_AS_LITERAL", quoted_home_dir))
     return false;
 
-  bool elcap_or_later = base::mac::IsOSElCapitanOrLater();
+  bool elcap_or_later = base::mac::IsAtLeastOS10_11();
   if (!compiler.InsertBooleanParam("ELCAP_OR_LATER", elcap_or_later))
     return false;
 
   // Initialize sandbox.
   std::string error_str;
   bool success = compiler.CompileAndApplyProfile(&error_str);
   DLOG_IF(FATAL, !success) << "Failed to initialize sandbox: " << error_str;
   gSandboxIsActive = success;
   return success;
 }
@@ skipping 16 matching lines @@
   if (HANDLE_EINTR(fcntl(fd.get(), F_GETPATH, canonical_path)) != 0) {
     DPLOG(FATAL) << "GetCanonicalSandboxPath() failed for: "
                  << path.value();
     return path;
   }
 
   return base::FilePath(canonical_path);
 }
 
 }  // namespace content