DBus MediaAnalyticsClient and media_perception pb.

extensions/browser/api/media_perception_private/media_perception_api_manager.h

+// 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 EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_API_MANAGER_H_
+#define EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_API_MANAGER_H_
+
+#include "extensions/browser/browser_context_keyed_api_factory.h"
+#include "extensions/common/api/media_perception_private.h"
+
+namespace mpp = extensions::api::media_perception_private;
+
+namespace extensions {
+
+class MediaPerceptionAPIManager : public BrowserContextKeyedAPI {
+ public:
+  explicit MediaPerceptionAPIManager(content::BrowserContext* context);
+  ~MediaPerceptionAPIManager() override;
+
+  // Convenience method to get the MediaPeceptionAPIManager for a
+  // BrowserContext.
+  static MediaPerceptionAPIManager* Get(content::BrowserContext* context);
+
+  // BrowserContextKeyedAPI implementation.
+  static BrowserContextKeyedAPIFactory<MediaPerceptionAPIManager>*
+  GetFactoryInstance();
+
+  // Triggers an onMediaPerception event on the JavaScript side, if the an event
+  // listener has been attached.
+  void TriggerOnMediaPerceptionEvent();
+
+  // The status of the media perception system.
+  mpp::Status status_;

[bmayer, 2017/04/13 17:41:59]

Could this be made a private or protected member with setter/getters for status
to keep the interface clean?

[Luke Sorenson, 2017/04/13 17:58:21]

Yes, this should definitely be private especially when the state/status is tied
to the rest of the system. This will change when the D-Bus interface is added.
I'll add an explicit TODO to make this change.

+
+ private:
+  friend class BrowserContextKeyedAPIFactory<MediaPerceptionAPIManager>;
+
+  // BrowserContextKeyedAPI:
+  static const char* service_name() { return "MediaPerceptionAPIManager"; }
+
+  content::BrowserContext* const browser_context_;
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_API_MANAGER_H_