Isolated FS for media devices.

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 "base/utf_string_conversions.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"
+#include "webkit/fileapi/media/media_file_system_config.h"
+
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+#include "webkit/fileapi/media/media_device_map_service.h"

[kinuko, 2012/07/28 02:29:59]

nit: maybe you could add the ifdef inside the header file and remove ifdefs from
the include-sites?

[kmadhusu, 2012/07/28 23:15:30]

As we discussed, this is a temporary code. Therefore, I am leaving it as it is.

+
+using fileapi::MediaDeviceMapService;
+#endif
 
 namespace chrome {
 
 static base::LazyInstance<MediaFileSystemRegistry>::Leaky
     g_media_file_system_registry = LAZY_INSTANCE_INITIALIZER;
 
 using base::SystemMonitor;
 using content::BrowserThread;
 using content::RenderProcessHost;
 using fileapi::IsolatedContext;
@@ skipping 44 matching lines @@
   for (MediaPathToFSIDMap::const_iterator it = child_map.begin();
        it != child_map.end();
        ++it) {
     const FilePath path = it->first;
     const std::string fsid = it->second;
     results.push_back(std::make_pair(fsid, path));
   }
   return results;
 }
 
-void MediaFileSystemRegistry::OnMediaDeviceDetached(const std::string& id) {
+void MediaFileSystemRegistry::OnMediaDeviceDetached(
+    const std::string& id,
+    const FilePath::StringType& location) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   DeviceIdToMediaPathMap::iterator it = device_id_map_.find(id);
   if (it == device_id_map_.end())
     return;
+
+#if defined(SUPPORT_MEDIA_FILESYSTEM)
+  MediaDeviceMapService::GetInstance()->RemoveMediaDevice(location);
+#endif
+
   RevokeMediaFileSystem(it->second);
   device_id_map_.erase(it);
 }
 
 void MediaFileSystemRegistry::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK(type == content::NOTIFICATION_RENDERER_PROCESS_CLOSED ||
          type == content::NOTIFICATION_RENDERER_PROCESS_TERMINATED);
@@ skipping 63 matching lines @@
     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