[WIP] Provided file system from NACL.

chrome/browser/chromeos/file_system_provider/provided_file_system.h

Index: chrome/browser/chromeos/file_system_provider/provided_file_system.h
diff --git a/chrome/browser/chromeos/file_system_provider/provided_file_system.h b/chrome/browser/chromeos/file_system_provider/provided_file_system.h
index 3bde99a95b2c54c315dd9d01fa22d478b23fb326..7080ad88abb9f4bb29c442ff3429bfd4cecc6819 100644
--- a/chrome/browser/chromeos/file_system_provider/provided_file_system.h
+++ b/chrome/browser/chromeos/file_system_provider/provided_file_system.h
@@ -31,10 +31,6 @@ namespace base {
 class FilePath;
 }  // namespace base
 
-namespace extensions {
-class EventRouter;
-}  // namespace extensions
-
 namespace chromeos {
 namespace file_system_provider {
 
@@ -73,7 +69,9 @@ class AutoUpdater : public base::RefCounted<AutoUpdater> {
 
 // Provided file system implementation. Forwards requests between providers and
 // clients.
-class ProvidedFileSystem : public ProvidedFileSystemInterface {
+template <class DestinationPolicy>
+class ProvidedFileSystem : public ProvidedFileSystemInterface,
+                           public DestinationPolicy {
  public:
   ProvidedFileSystem(Profile* profile,
                      const ProvidedFileSystemInfo& file_system_info);
@@ -81,7 +79,8 @@ class ProvidedFileSystem : public ProvidedFileSystemInterface {
 
   // Sets a custom event router. Used in unit tests to mock out the real
   // extension.
-  void SetEventRouterForTesting(extensions::EventRouter* event_router);
+  void SetEventRouterForTesting(
+      typename DestinationPolicy::EventRouterType* event_router);
 
   // Sets a custom notification manager. It will recreate the request manager,
   // so is must be called just after creating ProvideFileSystem instance.
@@ -232,8 +231,10 @@ class ProvidedFileSystem : public ProvidedFileSystemInterface {
       const storage::AsyncFileUtil::StatusCallback& callback,
       base::File::Error result);
 
-  Profile* profile_;                       // Not owned.
-  extensions::EventRouter* event_router_;  // Not owned. May be NULL.
+  // Not owned.
+  Profile* profile_;
+  // Not owned. May be NULL
+  typename DestinationPolicy::EventRouterType* event_router_;
   ProvidedFileSystemInfo file_system_info_;
   scoped_ptr<NotificationManagerInterface> notification_manager_;
   scoped_ptr<RequestManager> request_manager_;
@@ -242,8 +243,8 @@ class ProvidedFileSystem : public ProvidedFileSystemInterface {
   OpenedFiles opened_files_;
   base::ObserverList<ProvidedFileSystemObserver> observers_;
 
-  base::WeakPtrFactory<ProvidedFileSystem> weak_ptr_factory_;
-  DISALLOW_COPY_AND_ASSIGN(ProvidedFileSystem);
+  base::WeakPtrFactory<ProvidedFileSystem<DestinationPolicy>> weak_ptr_factory_;
+  DISALLOW_COPY_AND_ASSIGN(ProvidedFileSystem<DestinationPolicy>);
 };
 
 }  // namespace file_system_provider