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

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>
 #include <stddef.h>
@@ skipping 430 matching lines @@
   // immediate death.
   CHECK(darwin_major_version >= 6);
   int mac_os_x_minor_version = darwin_major_version - 4;
   DLOG_IF(WARNING, darwin_major_version > 16) << "Assuming Darwin "
       << base::IntToString(darwin_major_version) << " is Mac OS X 10."
       << base::IntToString(mac_os_x_minor_version);
 
   return mac_os_x_minor_version;
 }
 
-// Returns the running system's Mac OS X minor version. This is the |y| value
-// in 10.y or 10.y.z.
+}  // namespace
+
+namespace internal {
 int MacOSXMinorVersion() {
   static int mac_os_x_minor_version = MacOSXMinorVersionInternal();
   return mac_os_x_minor_version;
 }
-
-enum {
-  MAVERICKS_MINOR_VERSION = 9,
-  YOSEMITE_MINOR_VERSION = 10,
-  EL_CAPITAN_MINOR_VERSION = 11,
-  SIERRA_MINOR_VERSION = 12,
-};
-
-}  // namespace
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_9)
-bool IsOSMavericks() {
-  return MacOSXMinorVersion() == MAVERICKS_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_10)
-bool IsOSYosemite() {
-  return MacOSXMinorVersion() == YOSEMITE_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_10)
-bool IsOSYosemiteOrLater() {
-  return MacOSXMinorVersion() >= YOSEMITE_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_11)
-bool IsOSElCapitan() {
-  return MacOSXMinorVersion() == EL_CAPITAN_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_11)
-bool IsOSElCapitanOrLater() {
-  return MacOSXMinorVersion() >= EL_CAPITAN_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_12)
-bool IsOSSierra() {
-  return MacOSXMinorVersion() == SIERRA_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_12)
-bool IsOSSierraOrLater() {
-  return MacOSXMinorVersion() >= SIERRA_MINOR_VERSION;
-}
-#endif
-
-#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_12)
-bool IsOSLaterThanSierra_DontCallThis() {
-  return MacOSXMinorVersion() > SIERRA_MINOR_VERSION;
-}
-#endif
+}  // namespace internal
 
 std::string GetModelIdentifier() {
   std::string return_string;
   ScopedIOObject<io_service_t> platform_expert(
       IOServiceGetMatchingService(kIOMasterPortDefault,
                                   IOServiceMatching("IOPlatformExpertDevice")));
   if (platform_expert) {
     ScopedCFTypeRef<CFDataRef> model_data(
         static_cast<CFDataRef>(IORegistryEntryCreateCFProperty(
             platform_expert,
@@ skipping 26 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