Add mojo service for CopylessPaste in Java

third_party/WebKit/public/platform/modules/document_metadata/copyless_paste.mojom

Index: third_party/WebKit/public/platform/modules/document_metadata/copyless_paste.mojom
diff --git a/third_party/WebKit/public/platform/modules/document_metadata/copyless_paste.mojom b/third_party/WebKit/public/platform/modules/document_metadata/copyless_paste.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..5498b1b08af36c4b71dea9f17842ffb77baf3d95
--- /dev/null
+++ b/third_party/WebKit/public/platform/modules/document_metadata/copyless_paste.mojom
@@ -0,0 +1,9 @@
+// Copyright 2017 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.
+
+module blink.mojom;
+
+interface CopylessPaste {
+  ReportEntityJsonLd(string url, string json);
+};