Revert of mac: Add auto-close and share-read-only functionality to SharedMemory.

ipc/attachment_broker_privileged_mac_unittest.cc

Index: ipc/attachment_broker_privileged_mac_unittest.cc
diff --git a/ipc/attachment_broker_privileged_mac_unittest.cc b/ipc/attachment_broker_privileged_mac_unittest.cc
index 07222a39c7c579c8a86e021c3d13cc46c1b02ad8..678f955775f5dbfeb8113e1073a3df9be2720468 100644
--- a/ipc/attachment_broker_privileged_mac_unittest.cc
+++ b/ipc/attachment_broker_privileged_mac_unittest.cc
@@ -10,7 +10,6 @@
 #include <map>
 
 #include "base/command_line.h"
-#include "base/mac/mac_util.h"
 #include "base/mac/mach_logging.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/memory/shared_memory.h"
@@ -166,10 +165,6 @@
 // The attachment broker inserts a right for a memory object into the
 // destination task.
 TEST_F(AttachmentBrokerPrivilegedMacMultiProcessTest, InsertRight) {
-  // Mach-based SharedMemory isn't support on OSX 10.6.
-  if (base::mac::IsOSSnowLeopard())
-    return;
-
   SetUpChild("InsertRightClient");
   mach_msg_type_number_t original_name_count = GetActiveNameCount();
   IPC::AttachmentBrokerPrivilegedMac broker(nullptr);
@@ -233,10 +228,6 @@
 // The attachment broker inserts the right for a memory object into the
 // destination task twice.
 TEST_F(AttachmentBrokerPrivilegedMacMultiProcessTest, InsertSameRightTwice) {
-  // Mach-based SharedMemory isn't support on OSX 10.6.
-  if (base::mac::IsOSSnowLeopard())
-    return;
-
   SetUpChild("InsertSameRightTwiceClient");
   mach_msg_type_number_t original_name_count = GetActiveNameCount();
   IPC::AttachmentBrokerPrivilegedMac broker(nullptr);
@@ -329,10 +320,6 @@
 // The attachment broker inserts the rights for two memory objects into the
 // destination task.
 TEST_F(AttachmentBrokerPrivilegedMacMultiProcessTest, InsertTwoRights) {
-  // Mach-based SharedMemory isn't support on OSX 10.6.
-  if (base::mac::IsOSSnowLeopard())
-    return;
-
   SetUpChild("InsertTwoRightsClient");
   mach_msg_type_number_t original_name_count = GetActiveNameCount();
   IPC::AttachmentBrokerPrivilegedMac broker(nullptr);