Remove POSIX shared memory.

mojo/edk/embedder/embedder_unittest.cc

Index: mojo/edk/embedder/embedder_unittest.cc
diff --git a/mojo/edk/embedder/embedder_unittest.cc b/mojo/edk/embedder/embedder_unittest.cc
index b21d898e23b9318d281b5893ec8a5d25fe7746a5..8a04fbc1fa7d34f5f2922d49012da214805fc409 100644
--- a/mojo/edk/embedder/embedder_unittest.cc
+++ b/mojo/edk/embedder/embedder_unittest.cc
@@ -303,9 +303,6 @@ TEST_F(EmbedderTest, MAYBE_MultiprocessBaseSharedMemory) {
     // from it.
     base::SharedMemoryCreateOptions options;
     options.size = 123;
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-    options.type = base::SharedMemoryHandle::POSIX;
-#endif
     base::SharedMemory shared_memory;
     ASSERT_TRUE(shared_memory.Create(options));
     base::SharedMemoryHandle shm_handle = base::SharedMemory::DuplicateHandle(
@@ -424,7 +421,6 @@ TEST_F(EmbedderTest, MultiprocessMachSharedMemory) {
 }
 
 enum class HandleType {
-  POSIX,

[Anand Mistry (off Chromium), 2016/04/16 01:27:54]

Please restore this. I changed the test so it no longer uses posix for shared
memory, but we still need to test mixing fds (regular files) with mach ports.

[erikchen, 2016/04/18 17:14:39]

Done.

   MACH,
   MACH_NULL,
 };
@@ -432,8 +428,6 @@ enum class HandleType {
 const HandleType kTestHandleTypes[] = {
   HandleType::MACH,
   HandleType::MACH_NULL,
-  HandleType::POSIX,
-  HandleType::POSIX,
   HandleType::MACH,
 };
 
@@ -446,14 +440,7 @@ TEST_F(EmbedderTest, MultiprocessMixMachAndFds) {
     for (size_t i = 0; i < arraysize(kTestHandleTypes); i++) {
       const auto type = kTestHandleTypes[i];
       ScopedPlatformHandle scoped_handle;
-      if (type == HandleType::POSIX) {
-        // The easiest source of fds is opening /dev/null.
-        base::File file(base::FilePath("/dev/null"),
-                        base::File::FLAG_OPEN | base::File::FLAG_WRITE);
-        ASSERT_TRUE(file.IsValid());
-        scoped_handle.reset(PlatformHandle(file.TakePlatformFile()));
-        EXPECT_EQ(PlatformHandle::Type::POSIX, scoped_handle.get().type);
-      } else if (type == HandleType::MACH_NULL) {
+      if (type == HandleType::MACH_NULL) {
         scoped_handle.reset(PlatformHandle(
             static_cast<mach_port_t>(MACH_PORT_NULL)));
         EXPECT_EQ(PlatformHandle::Type::MACH, scoped_handle.get().type);
@@ -497,10 +484,7 @@ DEFINE_TEST_CLIENT_TEST_WITH_PIPE(MultiprocessMixMachAndFdsClient, EmbedderTest,
     ScopedPlatformHandle scoped_handle;
     ASSERT_EQ(MOJO_RESULT_OK,
               PassWrappedPlatformHandle(platform_handles[i], &scoped_handle));
-    if (type == HandleType::POSIX) {
-      EXPECT_NE(0, scoped_handle.get().handle);
-      EXPECT_EQ(PlatformHandle::Type::POSIX, scoped_handle.get().type);
-    } else if (type == HandleType::MACH_NULL) {
+    if (type == HandleType::MACH_NULL) {
       EXPECT_EQ(static_cast<mach_port_t>(MACH_PORT_NULL),
                 scoped_handle.get().port);
       EXPECT_EQ(PlatformHandle::Type::MACH, scoped_handle.get().type);