Reland of "Mojo interface/service for Leak Detector on remote process"

components/metrics/leak_detector/protobuf_to_mojo_converter.h

Index: components/metrics/leak_detector/protobuf_to_mojo_converter.h
diff --git a/components/metrics/leak_detector/protobuf_to_mojo_converter.h b/components/metrics/leak_detector/protobuf_to_mojo_converter.h
new file mode 100644
index 0000000000000000000000000000000000000000..9447f76ffab19b44445d6202b1dd817592a92030
--- /dev/null
+++ b/components/metrics/leak_detector/protobuf_to_mojo_converter.h
@@ -0,0 +1,36 @@
+// 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.
+
+#ifndef COMPONENTS_METRICS_LEAK_DETECTOR_PROTOBUF_TO_MOJO_CONVERTER_H_
+#define COMPONENTS_METRICS_LEAK_DETECTOR_PROTOBUF_TO_MOJO_CONVERTER_H_
+
+#include "components/metrics/leak_detector/leak_detector.mojom.h"
+#include "components/metrics/proto/memory_leak_report.pb.h"
+
+namespace metrics {
+namespace leak_detector {
+namespace protobuf_to_mojo_converter {
+
+// Converts between a MemoryLeakReportProto::Params protobuf and a
+// mojom::LeakDetectorParams Mojo structure. The Mojo structure must already be
+// allocated.
+void ParamsToMojo(const MemoryLeakReportProto::Params& params,
+                  mojom::LeakDetectorParams* mojo_params);
+void MojoToParams(const mojom::LeakDetectorParams& mojo_params,
+                  MemoryLeakReportProto::Params* params);
+
+// Converts between a MemoryLeakReportProto protobuf and a
+// mojom::MemoryLeakReport Mojo structure. The Mojo structure must already be
+// allocated. The conversion only covers the fields that are filled in by the
+// LeakDetector class.
+void ReportToMojo(const MemoryLeakReportProto& report,
+                  mojom::MemoryLeakReport* mojo_report);
+void MojoToReport(const mojom::MemoryLeakReport& mojo_report,
+                  MemoryLeakReportProto* report);
+
+}  // namespace protobuf_to_mojo_converter
+}  // namespace leak_detector
+}  // namespace metrics
+
+#endif  // COMPONENTS_METRICS_LEAK_DETECTOR_PROTOBUF_TO_MOJO_CONVERTER_H_