[Hacky prototype] Create a shared-memory high-performance reporting service.

services/blamer/shared_memory_heap_registry.h

Index: services/blamer/shared_memory_heap_registry.h
diff --git a/services/blamer/shared_memory_heap_registry.h b/services/blamer/shared_memory_heap_registry.h
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+// 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.
+
+#ifndef SERVICES_BLAMER_SHARED_MEMORY_HEAP_REGISTRY_H_
+#define SERVICES_BLAMER_SHARED_MEMORY_HEAP_REGISTRY_H_
+
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "services/blamer/public/interfaces/shared_memory_heap_registry.mojom.h"
+#include "services/service_manager/public/cpp/connection.h"
+#include "services/service_manager/public/cpp/service_context_ref.h"
+
+namespace blamer {
+
+// This is the implementation of a SharedMemoryHeap that lives in the process
+// hosting the blamer service. It receives notifications of shared memory slabs
+// allocated by remote blamer heaps.
+class SharedMemoryHeapRegistry : public mojom::SharedMemoryHeapRegistry {
+ public:
+  SharedMemoryHeapRegistry(
+      service_manager::ServiceContextRefFactory* service_ref_factory);
+  ~SharedMemoryHeapRegistry() override;
+
+  static void Create(
+      service_manager::ServiceContextRefFactory* service_ref_factory,
+      blamer::mojom::SharedMemoryHeapRegistryRequest request);
+  void RegisterSlab(mojom::SharedMemoryHeapSlabPtr slab) override;
+
+ private:
+  service_manager::ServiceContextRefFactory* service_ref_factory_;
+  std::unique_ptr<service_manager::ServiceContextRef> service_ref_;
+
+  DISALLOW_COPY_AND_ASSIGN(SharedMemoryHeapRegistry);
+};
+
+}  // namespace blamer
+
+#endif  // SERVICES_BLAMER_SHARED_MEMORY_HEAP_REGISTRY_H_