Delete IsAtLeastOS10_9() and IsAtMostOS10_9()

base/mac/mac_util.h

 // 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.
 
 #ifndef BASE_MAC_MAC_UTIL_H_
 #define BASE_MAC_MAC_UTIL_H_
 
 #include <Carbon/Carbon.h>
 #include <stdint.h>
 #include <string>
@@ skipping 121 matching lines @@
   inline bool IsAtMostOS10_##V() {                    \
     TEST_DEPLOYMENT_TARGET(>, V, false)               \
     return internal::MacOSXMinorVersion() <= V;       \
   }
 
 #define TEST_DEPLOYMENT_TARGET(OP, V, RET)                      \
   if (MAC_OS_X_VERSION_MIN_REQUIRED OP MAC_OS_X_VERSION_10_##V) \
     return RET;
 #define IGNORE_DEPLOYMENT_TARGET(OP, V, RET)
 
-DEFINE_IS_OS_FUNCS(9, TEST_DEPLOYMENT_TARGET)
 DEFINE_IS_OS_FUNCS(10, TEST_DEPLOYMENT_TARGET)
 
 #ifdef MAC_OS_X_VERSION_10_11
 DEFINE_IS_OS_FUNCS(11, TEST_DEPLOYMENT_TARGET)
 #else
 DEFINE_IS_OS_FUNCS(11, IGNORE_DEPLOYMENT_TARGET)
 #endif
 
 #ifdef MAC_OS_X_VERSION_10_12
 DEFINE_IS_OS_FUNCS(12, TEST_DEPLOYMENT_TARGET)
 #else
 DEFINE_IS_OS_FUNCS(12, IGNORE_DEPLOYMENT_TARGET)
 #endif
 
+// Straggler for the oldest OS version we support.
+inline bool IsOS10_9() {
+  TEST_DEPLOYMENT_TARGET(>, 9, false)
+  return internal::MacOSXMinorVersion() == 9;
+}
+
 #undef IGNORE_DEPLOYMENT_TARGET
 #undef TEST_DEPLOYMENT_TARGET
 #undef DEFINE_IS_OS_FUNCS
 
 // This should be infrequently used. It only makes sense to use this to avoid
 // codepaths that are very likely to break on future (unreleased, untested,
 // unborn) OS releases, or to log when the OS is newer than any known version.
 inline bool IsOSLaterThan10_12_DontCallThis() {
   return !IsAtMostOS10_12();
 }
 
 // Retrieve the system's model identifier string from the IOKit registry:
 // for example, "MacPro4,1", "MacBookPro6,1". Returns empty string upon
 // failure.
 BASE_EXPORT std::string GetModelIdentifier();
 
 // Parse a model identifier string; for example, into ("MacBookPro", 6, 1).
 // If any error occurs, none of the input pointers are touched.
 BASE_EXPORT bool ParseModelIdentifier(const std::string& ident,
                                       std::string* type,
                                       int32_t* major,
                                       int32_t* minor);
 
 }  // namespace mac
 }  // namespace base
 
 #endif  // BASE_MAC_MAC_UTIL_H_