Blimp: create Mojo component for renderer/browser communication.

blimp/engine/mojo/blob_channel_service.h

+// 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 BLIMP_ENGINE_MOJO_BLOB_CHANNEL_SERVICE_H_
+#define BLIMP_ENGINE_MOJO_BLOB_CHANNEL_SERVICE_H_
+
+#include "blimp/engine/mojo/blob_channel.mojom.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace blimp {
+namespace engine {
+
+// Service for processing BlobChannel requests from the renderer.
+// Runs on the browser process.
+class BlobChannelService : public mojom::BlobChannel {
+ public:
+  // Creates a BlobChannel bound to the connection specified by |request|.
+  explicit BlobChannelService(mojom::BlobChannelRequest request);
+  ~BlobChannelService() override;
+
+  // Factory method called by Mojo.
+  static void Create(mojo::InterfaceRequest<mojom::BlobChannel> request);
+
+ private:
+  // BlobChannel implementation.
+  void Put(const mojo::String& id, mojo::Array<uint8_t> data) override;
+  void Push(const mojo::String& id) override;
+
+  // Binds |this| and its object lifetime to a Mojo connection.
+  mojo::StrongBinding<mojom::BlobChannel> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(BlobChannelService);
+};
+
+}  // namespace engine
+}  // namespace blimp
+
+#endif  // BLIMP_ENGINE_MOJO_BLOB_CHANNEL_SERVICE_H_