Convert RapporRecorder to use mojo.

components/rappor/rappor_recorder_impl.cc

+// Copyright 2016 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/rappor/rappor_recorder_impl.h"
+
+#include "components/rappor/rappor_service.h"
+#include "components/rappor/rappor_utils.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace rappor {
+
+RapporRecorderImpl::RapporRecorderImpl(RapporService* rappor_service)
+    : rappor_service_(rappor_service) {}
+
+RapporRecorderImpl::~RapporRecorderImpl() = default;
+
+// static
+void RapporRecorderImpl::Create(RapporService* rappor_service,
+                                rappor::mojom::RapporRecorderRequest request) {

[Alexei Svitkine (slow), 2016/10/13 19:25:25]

Nit: Remove rappor:: prefix

+  mojo::MakeStrongBinding(base::MakeUnique<RapporRecorderImpl>(rappor_service),
+                          std::move(request));
+}
+
+void RapporRecorderImpl::RecordRappor(const std::string& metric,
+                                      const std::string& sample) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  SampleString(rappor_service_, metric, ETLD_PLUS_ONE_RAPPOR_TYPE, sample);
+}
+
+void RapporRecorderImpl::RecordRapporURL(const std::string& metric,
+                                         const GURL& sample) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  SampleDomainAndRegistryFromGURL(rappor_service_, metric, sample);
+}
+
+}  // namespace rappor