DispatcherImpl    455 base/message_loop/message_loop_unittest.cc   DispatcherImpl dispatcher;
DispatcherImpl    481 base/message_loop/message_loop_unittest.cc   DispatcherImpl dispatcher;
DispatcherImpl    238 chrome/browser/devtools/devtools_embedder_message_dispatcher.cc   DispatcherImpl* d = new DispatcherImpl();