Isolated FS for media devices.

chrome/browser/media_gallery/media_file_system_registry.cc

Index: chrome/browser/media_gallery/media_file_system_registry.cc
diff --git a/chrome/browser/media_gallery/media_file_system_registry.cc b/chrome/browser/media_gallery/media_file_system_registry.cc
index 96bcf2aaa1812376165e9cd89dab991fa0f942e3..773efdbffc35b931d6e1ab14a3c193a9f3d2bb5f 100644
--- a/chrome/browser/media_gallery/media_file_system_registry.cc
+++ b/chrome/browser/media_gallery/media_file_system_registry.cc
@@ -16,6 +16,9 @@
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "webkit/fileapi/isolated_context.h"
+#include "webkit/fileapi/media_device_map_service.h"
+
+using fileapi::MediaDeviceMapService;
 
 namespace chrome {
 
@@ -80,12 +83,15 @@ MediaFileSystemRegistry::GetMediaFileSystems(
   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;
+  MediaDeviceMapService::GetInstance()->RemoveMediaDevice(location);
   RevokeMediaFileSystem(it->second);
   device_id_map_.erase(it);
 }