memory-infra: Introduce mojo interfaces and service stubs

services/memory_infra/public/cpp/memory_infra.typemap

Index: services/memory_infra/public/cpp/memory_infra.typemap
diff --git a/services/memory_infra/public/cpp/memory_infra.typemap b/services/memory_infra/public/cpp/memory_infra.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..3ec8660d6fb2229f9b549dc5f3dba5c9492e458c
--- /dev/null
+++ b/services/memory_infra/public/cpp/memory_infra.typemap
@@ -0,0 +1,16 @@
+# 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 = "//services/memory_infra/public/interfaces/memory_infra.mojom"
+
+public_headers = [ "//base/trace_event/memory_dump_request_args.h" ]
+traits_headers = [ "//services/memory_infra/public/cpp/memory_infra_traits.h" ]
+deps = [
+  "//base",
+]
+type_mappings = [
+  "memory_infra.mojom.DumpType=base::trace_event::MemoryDumpType",
+  "memory_infra.mojom.LevelOfDetail=base::trace_event::MemoryDumpLevelOfDetail",
+  "memory_infra.mojom.RequestArgs=base::trace_event::MemoryDumpRequestArgs",
+]