Readd the clipboard service and get it compiling again.

components/clipboard/main.cc

Index: components/clipboard/main.cc
diff --git a/services/tracing/main.cc b/components/clipboard/main.cc
similarity index 70%
copy from services/tracing/main.cc
copy to components/clipboard/main.cc
index 758efedf985a0df05f8ddeef5fa9cd3a9c4daaca..cd0e2d9e624e186d74038b0ee3668ae55e4b4640 100644
--- a/services/tracing/main.cc
+++ b/components/clipboard/main.cc
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "components/clipboard/clipboard_application_delegate.h"
 #include "mojo/public/c/system/main.h"
 #include "services/shell/public/cpp/application_runner.h"
-#include "services/tracing/tracing_app.h"
 
 MojoResult MojoMain(MojoHandle shell_handle) {
-  shell::ApplicationRunner runner(new tracing::TracingApp);
+  shell::ApplicationRunner runner(new clipboard::ClipboardApplicationDelegate);
   return runner.Run(shell_handle);
 }