Implement Ukm Mojo interface.

components/ukm/ukm_interface.cc

+// 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.
+
+#include "components/ukm/ukm_interface.h"
+
+#include "base/memory/ptr_util.h"
+#include "components/ukm/public/ukm_recorder.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace ukm {
+
+UkmInterface::UkmInterface(UkmRecorder* ukm_recorder)
+    : ukm_recorder_(ukm_recorder) {}
+
+UkmInterface::~UkmInterface() = default;
+
+// static
+void UkmInterface::Create(UkmRecorder* ukm_recorder,
+                          const service_manager::BindSourceInfo& source_info,
+                          mojom::UkmRecorderInterfaceRequest request) {
+  mojo::MakeStrongBinding(base::MakeUnique<UkmInterface>(ukm_recorder),
+                          std::move(request));
+}
+
+void UkmInterface::AddEntry(mojom::UkmEntryPtr ukm_entry) {
+  ukm_recorder_->AddEntry(std::move(ukm_entry));
+}
+
+}  // namespace ukm