Picasa import: MediaFileSystemRegistry and misc. plumbing

chrome/browser/media_galleries/media_file_system_context.h

Index: chrome/browser/media_galleries/media_file_system_context.h
diff --git a/chrome/browser/media_galleries/media_file_system_context.h b/chrome/browser/media_galleries/media_file_system_context.h
index 2ea9c825254ef3ef4cc6de98aadc3b0ac0ee2e8f..4232a4bf1b8eda9cbc02e0ff59606315d7e00169 100644
--- a/chrome/browser/media_galleries/media_file_system_context.h
+++ b/chrome/browser/media_galleries/media_file_system_context.h
@@ -36,6 +36,11 @@ class MediaFileSystemContext {
       const std::string& device_id, const base::FilePath& path,
       scoped_refptr<ScopedMTPDeviceMapEntry>* entry) = 0;
 
+  // Register a Picasa filesystem. |path| refers to the absolute path of the
+  // Picasa db3 database.
+  virtual std::string RegisterFileSystemForPicasa(
+      const std::string& device_id, const base::FilePath& path) = 0;
+
   // Revoke the passed |fsid|.
   virtual void RevokeFileSystem(const std::string& fsid) = 0;