CopyOutputResult must have a working release callback when received over mojo

cc/ipc/single_release_callback.typemap

Index: cc/ipc/single_release_callback.typemap
diff --git a/cc/ipc/single_release_callback.typemap b/cc/ipc/single_release_callback.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..f2a42c28342930a657d5da67319b1f6619d61099
--- /dev/null
+++ b/cc/ipc/single_release_callback.typemap
@@ -0,0 +1,14 @@
+# 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.
+
+mojom = "//cc/ipc/single_release_callback.mojom"
+public_headers = [ "//cc/resources/single_release_callback.h" ]
+traits_headers = [ "//cc/ipc/single_release_callback_struct_traits.h" ]
+public_deps = [
+  "//cc",
+]
+sources = [
+  "//cc/ipc:struct_traits",
+]
+type_mappings = [ "cc.mojom.SingleReleaseCallback=std::unique_ptr<cc::SingleReleaseCallback>[move_only]" ]