Revert 147895 - switch mediaGalleries to .idl api definition

chrome/browser/extensions/api/media_galleries/media_galleries_api.h

-// Copyright (c) 2012 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.
-
-// Defines the Chrome Extensions Media Galleries API functions for accessing
-// user's media files, as specified in the extension API JSON.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_
-#define CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_
-
-#include "chrome/browser/extensions/extension_function.h"
-
-namespace extensions {
-
-class MediaGalleriesGetMediaFileSystemsFunction : public SyncExtensionFunction {
- public:
-  DECLARE_EXTENSION_FUNCTION_NAME(
-      "experimental.mediaGalleries.getMediaFileSystems")
-
- protected:
-  virtual ~MediaGalleriesGetMediaFileSystemsFunction();
-  virtual bool RunImpl() OVERRIDE;
-};
-
-class MediaGalleriesAssembleMediaFileFunction : public SyncExtensionFunction {
- public:
-  DECLARE_EXTENSION_FUNCTION_NAME(
-      "experimental.mediaGalleries.assembleMediaFile")
-
- protected:
-  virtual ~MediaGalleriesAssembleMediaFileFunction();
-  virtual bool RunImpl() OVERRIDE;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_MEDIA_GALLERIES_MEDIA_GALLERIES_API_H_