mac: Remove some 10.6-SDK-only sandbox code.

sandbox/mac/bootstrap_sandbox_unittest.mm

Index: sandbox/mac/bootstrap_sandbox_unittest.mm
diff --git a/sandbox/mac/bootstrap_sandbox_unittest.mm b/sandbox/mac/bootstrap_sandbox_unittest.mm
index 467189e134fa9fd74b9f8dc6756bda4ff3f34451..6ef1937fecb158a1658c8df3d95bfe14b39567b8 100644
--- a/sandbox/mac/bootstrap_sandbox_unittest.mm
+++ b/sandbox/mac/bootstrap_sandbox_unittest.mm
@@ -80,11 +80,6 @@ NSString* const kTestNotification = @"org.chromium.bootstrap_sandbox_test";
 
 namespace sandbox {
 
-void InitializeXPCIfRequired() {
-  if (base::mac::IsOSYosemiteOrLater())
-    CHECK(InitializeXPC());
-}
-
 class BootstrapSandboxTest : public base::MultiProcessTest {
  public:
   void SetUp() override {
@@ -179,8 +174,6 @@ TEST_F(BootstrapSandboxTest, DistributedNotifications_SandboxAllow) {
 }
 
 MULTIPROCESS_TEST_MAIN(PostNotification) {
-  InitializeXPCIfRequired();
-
   [[NSDistributedNotificationCenter defaultCenter]
       postNotificationName:kTestNotification
                     object:[NSString stringWithFormat:@"%d", getpid()]];
@@ -198,8 +191,6 @@ TEST_F(BootstrapSandboxTest, PolicyDenyError) {
 }
 
 MULTIPROCESS_TEST_MAIN(PolicyDenyError) {
-  InitializeXPCIfRequired();
-
   mach_port_t port = MACH_PORT_NULL;
   kern_return_t kr = bootstrap_look_up(bootstrap_port, kTestServer,
       &port);
@@ -223,8 +214,6 @@ TEST_F(BootstrapSandboxTest, PolicyDenyDummyPort) {
 }
 
 MULTIPROCESS_TEST_MAIN(PolicyDenyDummyPort) {
-  InitializeXPCIfRequired();
-
   mach_port_t port = MACH_PORT_NULL;
   kern_return_t kr = bootstrap_look_up(bootstrap_port, kTestServer,
       &port);
@@ -290,8 +279,6 @@ TEST_F(BootstrapSandboxTest, PolicySubstitutePort) {
 }
 
 MULTIPROCESS_TEST_MAIN(PolicySubstitutePort) {
-  InitializeXPCIfRequired();
-
   mach_port_t port = MACH_PORT_NULL;
   kern_return_t kr = bootstrap_look_up(bootstrap_port, kTestServer, &port);
   CHECK_EQ(KERN_SUCCESS, kr);
@@ -409,8 +396,6 @@ TEST_F(BootstrapSandboxTest, DefaultRuleAllow) {
 }
 
 MULTIPROCESS_TEST_MAIN(DefaultRuleAllow) {
-  InitializeXPCIfRequired();
-
   [[NSDistributedNotificationCenter defaultCenter]
       postNotificationName:kTestNotification
                     object:[NSString stringWithFormat:@"%d", getpid()]];
@@ -492,8 +477,6 @@ TEST_F(BootstrapSandboxTest, ChildOutliveSandbox) {
 }
 
 MULTIPROCESS_TEST_MAIN(ChildOutliveSandbox) {
-  InitializeXPCIfRequired();
-
   // Get the synchronization channel.
   mach_port_t port = MACH_PORT_NULL;
   CHECK_EQ(KERN_SUCCESS, bootstrap_look_up(bootstrap_port, "sync", &port));