Readd the clipboard service and get it compiling again.

components/clipboard/clipboard_application_delegate.h

Index: components/clipboard/clipboard_application_delegate.h
diff --git a/components/clipboard/clipboard_application_delegate.h b/components/clipboard/clipboard_application_delegate.h
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+++ b/components/clipboard/clipboard_application_delegate.h
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+// Copyright 2015 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 COMPONENTS_CLIPBOARD_CLIBPOARD_APPLICATION_DELEGATE_H_
+#define COMPONENTS_CLIPBOARD_CLIBPOARD_APPLICATION_DELEGATE_H_
+
+#include "base/macros.h"
+#include "components/clipboard/public/interfaces/clipboard.mojom.h"
+#include "services/shell/public/cpp/interface_factory.h"
+#include "services/shell/public/cpp/shell_client.h"
+#include "services/tracing/public/cpp/tracing_impl.h"
+
+namespace clipboard {
+
+class ClipboardApplicationDelegate
+    : public shell::ShellClient,
+      public shell::InterfaceFactory<mojo::Clipboard> {
+ public:
+  ClipboardApplicationDelegate();
+  ~ClipboardApplicationDelegate() override;
+
+  // mojo::ShellClient implementation.
+  void Initialize(shell::Connector* connector,
+                  const shell::Identity& identity,
+                  uint32_t id) override;
+  bool AcceptConnection(shell::Connection* connection) override;
+
+  // InterfaceFactory<Clipboard> implementation.
+  void Create(shell::Connection* connection,
+              mojo::ClipboardRequest request) override;
+
+ private:
+  mojo::TracingImpl tracing_;
+
+  DISALLOW_COPY_AND_ASSIGN(ClipboardApplicationDelegate);
+};
+
+}  // namespace clipboard
+
+#endif  // COMPONENTS_CLIPBOARD_CLIBPOARD_APPLICATION_DELEGATE_H_