EDK: Add handle rights checking to the various entrypoints.

mojo/edk/system/mock_simple_dispatcher.cc

 // Copyright 2016 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 "mojo/edk/system/mock_simple_dispatcher.h"
 
 #include "base/logging.h"
 #include "mojo/edk/util/thread_annotations.h"
 
 using mojo::util::MakeRefCounted;
@@ skipping 34 matching lines @@
   state_.satisfiable_signals = new_satisfiable_signals;
   HandleSignalsStateChangedNoLock();
 }
 
 Dispatcher::Type MockSimpleDispatcher::GetType() const {
   return Type::UNKNOWN;
 }
 
 bool MockSimpleDispatcher::SupportsEntrypointClass(
     EntrypointClass entrypoint_class) const {
-  return false;
+  return (entrypoint_class == EntrypointClass::NONE);
 }
 
 MockSimpleDispatcher::MockSimpleDispatcher(
     MojoHandleSignals satisfied_signals,
     MojoHandleSignals satisfiable_signals)
     : state_(satisfied_signals, satisfiable_signals) {}
 
 MockSimpleDispatcher::MockSimpleDispatcher(const HandleSignalsState& state)
     : state_(state) {}
 
 MockSimpleDispatcher::~MockSimpleDispatcher() {}
 
 RefPtr<Dispatcher>
 MockSimpleDispatcher::CreateEquivalentDispatcherAndCloseImplNoLock(
     MessagePipe* /*message_pipe*/,
     unsigned /*port*/) MOJO_NO_THREAD_SAFETY_ANALYSIS {
   CancelAllAwakablesNoLock();
   return MakeRefCounted<MockSimpleDispatcher>(state_);
 }
 
 HandleSignalsState MockSimpleDispatcher::GetHandleSignalsStateImplNoLock()
     const {
   mutex().AssertHeld();
   return state_;
 }
 
 }  // namespace test
 }  // namespace system
 }  // namespace mojo