[Mac] Add the OS version check functions for 10.8.

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 <string.h>
 #include <sys/utsname.h>
@@ skipping 536 matching lines @@
   int darwin_major_version = DarwinMajorVersionInternal();
 
   // The Darwin major version is always 4 greater than the Mac OS X minor
   // version for Darwin versions beginning with 6, corresponding to Mac OS X
   // 10.2. Since this correspondence may change in the future, warn when
   // encountering a version higher than anything seen before. Older Darwin
   // versions, or versions that can't be determined, result in
   // immediate death.
   CHECK(darwin_major_version >= 6);
   int mac_os_x_minor_version = darwin_major_version - 4;
-  DLOG_IF(WARNING, darwin_major_version > 11) << "Assuming Darwin "
+  DLOG_IF(WARNING, darwin_major_version > 12) << "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.
 int MacOSXMinorVersion() {
   static int mac_os_x_minor_version = MacOSXMinorVersionInternal();
   return mac_os_x_minor_version;
 }
 
 enum {
   LEOPARD_MINOR_VERSION = 5,
   SNOW_LEOPARD_MINOR_VERSION = 6,
-  LION_MINOR_VERSION = 7
+  LION_MINOR_VERSION = 7,
+  MOUNTAIN_LION_MINOR_VERSION = 8,
 };
 
 }  // namespace
 
 #if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_6)
 bool IsOSLeopard() {
   return MacOSXMinorVersion() == LEOPARD_MINOR_VERSION;
 }
 #endif
 
@@ skipping 20 matching lines @@
   return MacOSXMinorVersion() >= SNOW_LEOPARD_MINOR_VERSION;
 }
 #endif
 
 #if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_7)
 bool IsOSLion() {
   return MacOSXMinorVersion() == LION_MINOR_VERSION;
 }
 #endif
 
+#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_7)
+bool IsOSLionOrEarlier() {
+  return MacOSXMinorVersion() <= LION_MINOR_VERSION;
+}
+#endif
+
 #if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_7)
 bool IsOSLionOrLater() {
   return MacOSXMinorVersion() >= LION_MINOR_VERSION;
 }
 #endif
 
 #if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_7)
 bool IsOSLaterThanLion() {
   return MacOSXMinorVersion() > LION_MINOR_VERSION;
 }
 #endif
 
+#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_8)
+bool IsOSMountainLion() {
+  return MacOSXMinorVersion() == MOUNTAIN_LION_MINOR_VERSION;
+}
+#endif
+
+#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GE_10_8)
+bool IsOSMountainLionOrLater() {
+  return MacOSXMinorVersion() >= MOUNTAIN_LION_MINOR_VERSION;
+}
+#endif
+
+#if !defined(BASE_MAC_MAC_UTIL_H_INLINED_GT_10_8)
+bool IsOSDangerouslyLaterThanMountainLionForUseByCFAllocatorReplacement() {
+  return MacOSXMinorVersion() > MOUNTAIN_LION_MINOR_VERSION;
+}
+#endif
+
 namespace {
 
 // ScopedGenericObj functor for IOObjectRelease().
 class ScopedReleaseIOObject {
  public:
   void operator()(io_object_t x) const {
     IOObjectRelease(x);
   }
 };
 
@@ skipping 35 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