Remove obsolete methods from IPC::Channel and related classes.

ipc/ipc_test_sink.cc

Index: ipc/ipc_test_sink.cc
diff --git a/ipc/ipc_test_sink.cc b/ipc/ipc_test_sink.cc
index 4dd4a447731eef7b50fcca43788e7a1dd6ae12af..305b0ea17da6ab26cd0fa797655819e9caf811dd 100644
--- a/ipc/ipc_test_sink.cc
+++ b/ipc/ipc_test_sink.cc
@@ -39,11 +39,6 @@ base::ProcessId TestSink::GetPeerPID() const {
   return base::ProcessId();
 }
 
-base::ProcessId TestSink::GetSelfPID() const {
-  NOTIMPLEMENTED();
-  return base::ProcessId();
-}
-
 bool TestSink::OnMessageReceived(const Message& msg) {
   for (auto& observer : filter_list_) {
     if (observer.OnMessageReceived(msg))
@@ -95,18 +90,4 @@ void TestSink::RemoveFilter(Listener* filter) {
   filter_list_.RemoveObserver(filter);
 }
 
-#if defined(OS_POSIX) && !defined(OS_NACL)
-
-int TestSink::GetClientFileDescriptor() const {
-  NOTREACHED();
-  return -1;
-}
-
-base::ScopedFD TestSink::TakeClientFileDescriptor() {
-  NOTREACHED();
-  return base::ScopedFD();
-}
-
-#endif  // defined(OS_POSIX) && !defined(OS_NACL)
-
 }  // namespace IPC