Cleanup: Remove unused SharedMemory ctor.

base/memory/shared_memory_posix.cc

Index: base/memory/shared_memory_posix.cc
diff --git a/base/memory/shared_memory_posix.cc b/base/memory/shared_memory_posix.cc
index 28c103f96040228c0ea5c98601e9d92ffcfe18f8..666069839a620cc1576cbdf0204033b7d98db7a9 100644
--- a/base/memory/shared_memory_posix.cc
+++ b/base/memory/shared_memory_posix.cc
@@ -123,20 +123,6 @@ 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),
-      readonly_mapped_file_(-1),
-      mapped_size_(0),
-      memory_(NULL),
-      read_only_(read_only),
-      requested_size_(0) {
-  // We don't handle this case yet (note the ignored parameter); let's die if
-  // someone comes calling.
-  NOTREACHED();
-}
-
 SharedMemory::~SharedMemory() {
   Unmap();
   Close();