Revert of MediaPerceptionPrivate API impl and testing.

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 "base/memory/weak_ptr.h"
-#include "chromeos/media_perception/media_perception.pb.h"
-#include "extensions/browser/browser_context_keyed_api_factory.h"
-#include "extensions/common/api/media_perception_private.h"
-
-namespace extensions {
-
-class MediaPerceptionAPIManager : public BrowserContextKeyedAPI {
- public:
-  enum class CallbackStatus {
-    // Request to media analytics process was successful.
-    SUCCESS,
-    // Request to media analytics process failed at D-Bus layer.
-    DBUS_ERROR,
-    // The media analytics process is not running.
-    PROCESS_IDLE_ERROR,
-    // The media analytics process is still being launched via Upstart
-    // service.
-    PROCESS_LAUNCHING_ERROR
-  };
-
-  using APIStateCallback = base::Callback<void(
-      CallbackStatus status,
-      extensions::api::media_perception_private::State state)>;
-
-  using APIGetDiagnosticsCallback = base::Callback<void(
-      CallbackStatus status,
-      extensions::api::media_perception_private::Diagnostics diagnostics)>;
-
-  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();
-
-  // Public functions for MediaPerceptionPrivateAPI implementation.
-  void GetState(const APIStateCallback& callback);
-  void SetState(const extensions::api::media_perception_private::State& state,
-                const APIStateCallback& callback);
-  void GetDiagnostics(const APIGetDiagnosticsCallback& callback);
-
- private:
-  friend class BrowserContextKeyedAPIFactory<MediaPerceptionAPIManager>;
-
-  // BrowserContextKeyedAPI:
-  static const char* service_name() { return "MediaPerceptionAPIManager"; }
-
-  enum class AnalyticsProcessState {
-    // The process is not running.
-    IDLE,
-    // The process has been launched via Upstart, but waiting for callback to
-    // confirm.
-    LAUNCHING,
-    // The process is running.
-    RUNNING
-  };
-
-  // Sets the state of the analytics process.
-  void SetStateInternal(const APIStateCallback& callback,
-                        const mri::State& state);
-
-  // Event handler for MediaPerception proto messages coming over D-Bus as
-  // signal.
-  void MediaPerceptionSignalHandler(
-      const mri::MediaPerception& media_perception);
-
-  // Callback for State D-Bus method calls to the media analytics process.
-  void StateCallback(const APIStateCallback& callback,
-                     bool succeeded,
-                     const mri::State& state);
-
-  // Callback for GetDiagnostics D-Bus method calls to the media analytics
-  // process.
-  void GetDiagnosticsCallback(const APIGetDiagnosticsCallback& callback,
-                              bool succeeded,
-                              const mri::Diagnostics& diagnostics);
-
-  // Callback for Upstart command to start media analytics process.
-  void UpstartCallback(const APIStateCallback& callback,
-                       const mri::State& state,
-                       bool succeeded);
-
-  content::BrowserContext* const browser_context_;
-
-  // Keeps track of whether the analytics process is running so that it can be
-  // started with an Upstart D-Bus method call if necessary.
-  AnalyticsProcessState analytics_process_state_;
-
-  base::WeakPtrFactory<MediaPerceptionAPIManager> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(MediaPerceptionAPIManager);
-};
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_API_MANAGER_H_