Replace base::SharedMemory read-only methods with GetReadOnlyHandle.

base/memory/shared_memory_unittest.cc

 // 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/memory/shared_memory.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
@@ skipping 298 matching lines @@
       else
         EXPECT_EQ(0, pointers[j][0]);
     }
   }
 
   for (int i = 0; i < count; i++) {
     memories[i].Close();
   }
 }
 
-TEST(SharedMemoryTest, ShareReadOnly) {
+TEST(SharedMemoryTest, GetReadOnlyHandle) {
   StringPiece contents = "Hello World";
 
   SharedMemory writable_shmem;
   SharedMemoryCreateOptions options;
   options.size = contents.size();
   options.share_read_only = true;
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   // The Mach functionality is tested in shared_memory_mac_unittest.cc.
   options.type = SharedMemoryHandle::POSIX;
 #endif
   ASSERT_TRUE(writable_shmem.Create(options));
   ASSERT_TRUE(writable_shmem.Map(options.size));
   memcpy(writable_shmem.memory(), contents.data(), contents.size());
   EXPECT_TRUE(writable_shmem.Unmap());
 
-  SharedMemoryHandle readonly_handle;
-  ASSERT_TRUE(writable_shmem.ShareReadOnlyToProcess(GetCurrentProcessHandle(),
-                                                    &readonly_handle));
+  SharedMemoryHandle readonly_handle = writable_shmem.GetReadOnlyHandle();
+  ASSERT_TRUE(readonly_handle.IsValid());
   SharedMemory readonly_shmem(readonly_handle, /*readonly=*/true);
 
   ASSERT_TRUE(readonly_shmem.Map(contents.size()));
   EXPECT_EQ(contents,
             StringPiece(static_cast<const char*>(readonly_shmem.memory()),
                         contents.size()));
   EXPECT_TRUE(readonly_shmem.Unmap());
 
   // Make sure the writable instance is still writable.
   ASSERT_TRUE(writable_shmem.Map(contents.size()));
@@ skipping 353 matching lines @@
   memory.Close();
   SharedMemoryProcessTest::CleanUp();
 }
 
 MULTIPROCESS_TEST_MAIN(SharedMemoryTestMain) {
   return SharedMemoryProcessTest::TaskTestMain();
 }
 #endif  // !defined(OS_IOS) && !defined(OS_ANDROID) && !defined(OS_MACOSX)
 
 }  // namespace base