Enables internal filesystem types via Isolated filesystems

chrome/browser/media_gallery/media_file_system_registry.cc

 // 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.
 
 // MediaFileSystemRegistry implementation.
 
 #include "chrome/browser/media_gallery/media_file_system_registry.h"
 
 #include <set>
 
 #include "base/path_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
+#include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/isolated_context.h"
 
 namespace chrome {
 
 static base::LazyInstance<MediaFileSystemRegistry>::Leaky
     g_media_file_system_registry = LAZY_INSTANCE_INITIALIZER;
 
 using base::SystemMonitor;
 using content::BrowserThread;
 using content::RenderProcessHost;
@@ skipping 111 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Sanity checks for |path|.
   CHECK(path.IsAbsolute());
   CHECK(!path.ReferencesParent());
 
   // The directory name is not exposed to the js layer and we simply use
   // a fixed name (as we only register a single directory per file system).
   std::string register_name("_");
   const std::string fsid =
-      IsolatedContext::GetInstance()->RegisterFileSystemForFile(
-          path, &register_name);
+      IsolatedContext::GetInstance()->RegisterFileSystemForPath(
+          fileapi::kFileSystemTypeMedia, path, &register_name);

[kmadhusu, 2012/07/24 22:02:12]

Let the initial changes specify the file system type as
"fileapi::kFileSystemTypeIsolated".

   CHECK(!fsid.empty());
   return fsid;
 }
 
 void MediaFileSystemRegistry::RevokeMediaFileSystem(const FilePath& path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   IsolatedContext* isolated_context = IsolatedContext::GetInstance();
   for (ChildIdToMediaFSMap::iterator child_it = media_fs_map_.begin();
        child_it != media_fs_map_.end();
        ++child_it) {
     MediaPathToFSIDMap& child_map = child_it->second;
     MediaPathToFSIDMap::iterator media_path_it = child_map.find(path);
     if (media_path_it == child_map.end())
       continue;
     isolated_context->RevokeFileSystem(media_path_it->second);
     child_map.erase(media_path_it);
   }
 }
 
 }  // namespace chrome