Revert of MediaPerceptionPrivate API impl and testing.

extensions/browser/api/media_perception_private/media_perception_private_api.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_PRIVATE_API_H_
 #define EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_PRIVATE_API_H_
 
-#include "extensions/browser/api/media_perception_private/media_perception_api_manager.h"
 #include "extensions/browser/extension_function.h"
-#include "extensions/common/api/media_perception_private.h"
 
 namespace extensions {
 
 class MediaPerceptionPrivateGetStateFunction
     : public UIThreadExtensionFunction {
  public:
   MediaPerceptionPrivateGetStateFunction();
   DECLARE_EXTENSION_FUNCTION("mediaPerceptionPrivate.getState",
                              MEDIAPERCEPTIONPRIVATE_GETSTATE);
 
  private:
   ~MediaPerceptionPrivateGetStateFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
-  void GetStateCallback(MediaPerceptionAPIManager::CallbackStatus status,
-                        extensions::api::media_perception_private::State state);
-
   DISALLOW_COPY_AND_ASSIGN(MediaPerceptionPrivateGetStateFunction);
 };
 
 class MediaPerceptionPrivateSetStateFunction
     : public UIThreadExtensionFunction {
  public:
   MediaPerceptionPrivateSetStateFunction();
   DECLARE_EXTENSION_FUNCTION("mediaPerceptionPrivate.setState",
                              MEDIAPERCEPTIONPRIVATE_SETSTATE);
 
  private:
   ~MediaPerceptionPrivateSetStateFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
-  void SetStateCallback(MediaPerceptionAPIManager::CallbackStatus status,
-                        extensions::api::media_perception_private::State state);
-
   DISALLOW_COPY_AND_ASSIGN(MediaPerceptionPrivateSetStateFunction);
 };
 
 class MediaPerceptionPrivateGetDiagnosticsFunction
     : public UIThreadExtensionFunction {
  public:
   MediaPerceptionPrivateGetDiagnosticsFunction();
   DECLARE_EXTENSION_FUNCTION("mediaPerceptionPrivate.getDiagnostics",
                              MEDIAPERCEPTIONPRIVATE_GETDIAGNOSTICS);
 
  private:
   ~MediaPerceptionPrivateGetDiagnosticsFunction() override;
 
   // ExtensionFunction:
   ResponseAction Run() override;
 
-  void GetDiagnosticsCallback(
-      MediaPerceptionAPIManager::CallbackStatus status,
-      extensions::api::media_perception_private::Diagnostics diagnostics);
-
   DISALLOW_COPY_AND_ASSIGN(MediaPerceptionPrivateGetDiagnosticsFunction);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_MEDIA_PERCEPTION_PRIVATE_MEDIA_PERCEPTION_PRIVATE_API_H_