Media Galleries Partial Deprecation: Remove scan functionality.

chrome/browser/media_galleries/media_scan_manager.h

Index: chrome/browser/media_galleries/media_scan_manager.h
diff --git a/chrome/browser/media_galleries/media_scan_manager.h b/chrome/browser/media_galleries/media_scan_manager.h
deleted file mode 100644
index da0216a2b2d7442ab0e811ac3b8f88febb72d31a..0000000000000000000000000000000000000000
--- a/chrome/browser/media_galleries/media_scan_manager.h
+++ /dev/null
@@ -1,114 +0,0 @@
-// Copyright 2014 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 CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_SCAN_MANAGER_H_
-#define CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_SCAN_MANAGER_H_
-
-#include <map>
-#include <set>
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "base/scoped_observer.h"
-#include "base/time/time.h"
-#include "chrome/browser/media_galleries/media_folder_finder.h"
-#include "chrome/browser/media_galleries/media_scan_types.h"
-#include "extensions/browser/extension_registry_observer.h"
-
-class MediaScanManagerObserver;
-class Profile;
-
-namespace extensions {
-class Extension;
-class ExtensionRegistry;
-}
-
-// The MediaScanManager is owned by MediaFileSystemRegistry, which is global.
-// This class manages multiple 'virtual' media scans, up to one per extension
-// per profile, and also manages the one physical scan backing them.
-// This class lives and is called on the UI thread.
-class MediaScanManager : public extensions::ExtensionRegistryObserver {
- public:
-  MediaScanManager();
-  ~MediaScanManager() override;
-
-  // There can only be ever one observer registered per profile. Does not take
-  // ownership of |observer|. An observer must be registered before scanning.
-  void AddObserver(Profile* profile, MediaScanManagerObserver* observer);
-  void RemoveObserver(Profile* profile);
-
-  // Must be called when |profile| is shut down.
-  void CancelScansForProfile(Profile* profile);
-
-  // The results of the scan are reported to the registered
-  // MediaScanManagerObserver via OnScanFinished. There must be an observer
-  // registered for |profile| before the scan starts.
-  void StartScan(Profile* profile, const extensions::Extension* extension,
-                 bool user_gesture);
-  void CancelScan(Profile* profile, const extensions::Extension* extension);
-
- protected:
-  friend class MediaGalleriesPlatformAppBrowserTest;
-  friend class MediaScanManagerTest;
-
-  typedef base::Callback<MediaFolderFinder*(
-      const MediaFolderFinder::MediaFolderFinderResultsCallback&)>
-          MediaFolderFinderFactory;
-
-  void SetMediaFolderFinderFactory(const MediaFolderFinderFactory& factory);
-
-  // Here so that friend MediaScanManagerTest can access it.
-  static MediaFolderFinder::MediaFolderFinderResults FindContainerScanResults(
-      const MediaFolderFinder::MediaFolderFinderResults& found_folders,
-      const std::vector<base::FilePath>& sensitive_locations);
-
- private:
-  struct ScanObservers {
-    ScanObservers();
-    ScanObservers(const ScanObservers& other);
-    ~ScanObservers();
-    MediaScanManagerObserver* observer;
-    std::set<std::string /*extension id*/> scanning_extensions;
-  };
-  typedef std::map<Profile*, ScanObservers> ScanObserverMap;
-
-  // extensions::ExtensionRegistryObserver implementation.
-  void OnExtensionUnloaded(
-      content::BrowserContext* browser_context,
-      const extensions::Extension* extension,
-      extensions::UnloadedExtensionInfo::Reason reason) override;
-
-  bool ScanInProgress() const;
-
-  void OnScanCompleted(
-      bool success,
-      const MediaFolderFinder::MediaFolderFinderResults& found_folders);
-
-  void OnFoundContainerDirectories(
-      const MediaFolderFinder::MediaFolderFinderResults& found_folders,
-      const MediaFolderFinder::MediaFolderFinderResults& container_folders);
-
-  scoped_ptr<MediaFolderFinder> folder_finder_;
-
-  base::Time scan_start_time_;
-
-  // If not NULL, used to create |folder_finder_|. Used for testing.
-  MediaFolderFinderFactory testing_folder_finder_factory_;
-
-  // Set of extensions (on all profiles) that have an in-progress scan.
-  ScanObserverMap observers_;
-
-  ScopedObserver<extensions::ExtensionRegistry,
-                 extensions::ExtensionRegistryObserver>
-      scoped_extension_registry_observer_;
-
-  base::WeakPtrFactory<MediaScanManager> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(MediaScanManager);
-};
-
-#endif  // CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_SCAN_MANAGER_H_