iTunes file util and data provider for media galleries

chrome/browser/media_galleries/imported_media_gallery_registry.h

Index: chrome/browser/media_galleries/imported_media_gallery_registry.h
diff --git a/chrome/browser/media_galleries/imported_media_gallery_registry.h b/chrome/browser/media_galleries/imported_media_gallery_registry.h
index 2b62f7e57ddfd3b0737f375dac5944f2a3e0c004..d8f0e697c64412df0fb657c1c183ee780ac39ce7 100644
--- a/chrome/browser/media_galleries/imported_media_gallery_registry.h
+++ b/chrome/browser/media_galleries/imported_media_gallery_registry.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
 
+#include <set>
 #include <string>
 
 #include "base/basictypes.h"
@@ -12,6 +13,10 @@
 #include "base/lazy_instance.h"
 #include "base/memory/scoped_ptr.h"
 
+namespace itunes {
+class ITunesDataProvider;
+}
+
 namespace picasa {
 class PicasaDataProvider;
 }
@@ -28,12 +33,17 @@ class ImportedMediaGalleryRegistry {
   static ImportedMediaGalleryRegistry* GetInstance();
 
   // Should be called on the UI thread only.
-  static std::string RegisterPicasaFilesystemOnUIThread(
+  std::string RegisterPicasaFilesystemOnUIThread(
       const base::FilePath& database_path);
-  static bool RevokePicasaFilesystemOnUIThread(const std::string& fsid);
+
+  std::string RegisterITunesFilesystemOnUIThread(
+      const base::FilePath& xml_library_path);
+
+  bool RevokeImportedFilesystemOnUIThread(const std::string& fsid);
 
   // Should be called on the MediaTaskRunner thread only.
-  static picasa::PicasaDataProvider* picasa_data_provider();
+  static picasa::PicasaDataProvider* PicasaDataProvider();
+  static itunes::ITunesDataProvider* ITunesDataProvider();
 
  private:
   friend struct base::DefaultLazyInstanceTraits<ImportedMediaGalleryRegistry>;
@@ -44,9 +54,21 @@ class ImportedMediaGalleryRegistry {
   void RegisterPicasaFileSystem(const base::FilePath& database_path);
   void RevokePicasaFileSystem();
 
+  void RegisterITunesFileSystem(const base::FilePath& xml_library_path);
+  void RevokeITunesFileSystem();
+
+  // The data providers are only set or accessed on the task runner thread.
   scoped_ptr<picasa::PicasaDataProvider> picasa_data_provider_;
+  scoped_ptr<itunes::ITunesDataProvider> itunes_data_provider_;
+
+  // The remaining members are only accessed on the IO thread.
+  std::set<std::string> picasa_fsids_;
+  std::set<std::string> itunes_fsids_;
 
-  int picasa_filesystems_count_;
+#ifndef NDEBUG
+  base::FilePath picasa_database_path_;
+  base::FilePath itunes_xml_library_path_;
+#endif
 
   DISALLOW_COPY_AND_ASSIGN(ImportedMediaGalleryRegistry);
 };