Cleanup: Remove unused SharedMemory ctor.

base/memory/shared_memory_nacl.cc

Index: base/memory/shared_memory_nacl.cc
diff --git a/base/memory/shared_memory_nacl.cc b/base/memory/shared_memory_nacl.cc
index 7221ded747f95a9dd633532668ec74d652299020..fd6261f843162dca9938b4a879b7560d2145bca6 100644
--- a/base/memory/shared_memory_nacl.cc
+++ b/base/memory/shared_memory_nacl.cc
@@ -39,17 +39,6 @@ SharedMemory::SharedMemory(const SharedMemoryHandle& handle, bool read_only)
       requested_size_(0) {
 }
 
-SharedMemory::SharedMemory(const SharedMemoryHandle& handle,
-                           bool read_only,
-                           ProcessHandle process)
-    : mapped_file_(handle.fd),
-      mapped_size_(0),
-      memory_(NULL),
-      read_only_(read_only),
-      requested_size_(0) {
-  NOTREACHED();
-}
-
 SharedMemory::~SharedMemory() {
   Unmap();
   Close();