Get rid of SharedMemory::GiveToProcess.

base/memory/shared_memory_mac.cc

Index: base/memory/shared_memory_mac.cc
diff --git a/base/memory/shared_memory_mac.cc b/base/memory/shared_memory_mac.cc
index 9a6394949be2c990d117e50e0fe12e15ac06284d..67cd9e67724033ca1a0910504bb6414ad6ddea2c 100644
--- a/base/memory/shared_memory_mac.cc
+++ b/base/memory/shared_memory_mac.cc
@@ -284,13 +284,8 @@ bool SharedMemory::Share(SharedMemoryHandle* new_handle) {
 }
 
 bool SharedMemory::ShareToProcessCommon(ProcessHandle process,
-                                        SharedMemoryHandle* new_handle,
-                                        bool close_self) {
+                                        SharedMemoryHandle* new_handle) {
   bool success = Share(new_handle);
-  if (close_self) {
-    Unmap();
-    Close();
-  }
   return success;
 }