Make Dispatcher::Type an enum class.

mojo/edk/system/channel_endpoint_id.h

 // Copyright 2014 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.
 
 #ifndef MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_
 #define MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 63 matching lines @@
 
   // Copying and assignment allowed.
 };
 // This wrapper should add no overhead.
 // TODO(vtl): Rewrite |sizeof(uint32_t)| as |sizeof(ChannelEndpointId::value)|
 // once we have sufficient C++11 support.
 static_assert(sizeof(ChannelEndpointId) == sizeof(uint32_t),
               "ChannelEndpointId has incorrect size");
 
 // So logging macros and |DCHECK_EQ()|, etc. work.
-inline std::ostream& operator<<(std::ostream& out,
-                                const ChannelEndpointId& channel_endpoint_id) {
+MOJO_SYSTEM_IMPL_EXPORT inline std::ostream& operator<<(
+    std::ostream& out,
+    const ChannelEndpointId& channel_endpoint_id) {
   return out << channel_endpoint_id.value();
 }
 
 // LocalChannelEndpointIdGenerator ---------------------------------------------
 
 // A generator for "new" local |ChannelEndpointId|s. It does not track
 // used/existing IDs; that must be done separately. (This class is not
 // thread-safe.)
 class MOJO_SYSTEM_IMPL_EXPORT LocalChannelEndpointIdGenerator {
  public:
@@ skipping 42 matching lines @@
 template <>
 struct hash<mojo::system::ChannelEndpointId> {
   size_t operator()(mojo::system::ChannelEndpointId channel_endpoint_id) const {
     return static_cast<size_t>(channel_endpoint_id.value());
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 
 #endif  // MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_