Make Dispatcher::Type an enum class.

mojo/edk/system/dispatcher_unittest.cc

 // Copyright 2013 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/dispatcher.h"
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/simple_thread.h"
 #include "mojo/edk/embedder/platform_shared_buffer.h"
 #include "mojo/edk/system/memory.h"
 #include "mojo/edk/system/waiter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace system {
 namespace {
 
 // Trivial subclass that makes the constructor public.
 class TrivialDispatcher : public Dispatcher {
  public:
   TrivialDispatcher() {}
 
-  Type GetType() const override { return kTypeUnknown; }
+  Type GetType() const override { return Type::UNKNOWN; }
 
  private:
   friend class base::RefCountedThreadSafe<TrivialDispatcher>;
   ~TrivialDispatcher() override {}
 
   scoped_refptr<Dispatcher> CreateEquivalentDispatcherAndCloseImplNoLock()
       override {
     lock().AssertAcquired();
     return scoped_refptr<Dispatcher>(new TrivialDispatcher());
   }
 
   DISALLOW_COPY_AND_ASSIGN(TrivialDispatcher);
 };
 
 TEST(DispatcherTest, Basic) {
   scoped_refptr<Dispatcher> d(new TrivialDispatcher());
 
-  EXPECT_EQ(Dispatcher::kTypeUnknown, d->GetType());
+  EXPECT_EQ(Dispatcher::Type::UNKNOWN, d->GetType());
 
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
             d->WriteMessage(NullUserPointer(), 0, nullptr,
                             MOJO_WRITE_MESSAGE_FLAG_NONE));
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
             d->ReadMessage(NullUserPointer(), NullUserPointer(), nullptr,
                            nullptr, MOJO_WRITE_MESSAGE_FLAG_NONE));
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
             d->WriteData(NullUserPointer(), NullUserPointer(),
                          MOJO_WRITE_DATA_FLAG_NONE));
@@ skipping 243 matching lines @@
       event.Signal();
     }  // Joins all the threads.
 
     EXPECT_EQ(MOJO_RESULT_OK, d->Close());
   }
 }
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo