[fsp] Add notifications in case of slow operations.

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 91606ae94915a91b85d5be6ca6d91f3348fa1bbc..caf61bcd797cdd4f71a3f0bdd1f8582a3093ea1b 100644
--- a/chrome/browser/chromeos/file_system_provider/provided_file_system.h
+++ b/chrome/browser/chromeos/file_system_provider/provided_file_system.h
@@ -11,6 +11,8 @@
 #include "chrome/browser/chromeos/file_system_provider/request_manager.h"
 #include "webkit/browser/fileapi/async_file_util.h"
 
+class Profile;
+
 namespace net {
 class IOBuffer;
 }  // namespace net
@@ -26,11 +28,13 @@ class EventRouter;
 namespace chromeos {
 namespace file_system_provider {
 
+class NotificationManagerInterface;
+
 // Provided file system implementation. Forwards requests between providers and
 // clients.
 class ProvidedFileSystem : public ProvidedFileSystemInterface {
  public:
-  ProvidedFileSystem(extensions::EventRouter* event_router,
+  ProvidedFileSystem(Profile* profile,
                      const ProvidedFileSystemInfo& file_system_info);
   virtual ~ProvidedFileSystem();
 
@@ -60,9 +64,11 @@ class ProvidedFileSystem : public ProvidedFileSystemInterface {
   virtual base::WeakPtr<ProvidedFileSystemInterface> GetWeakPtr() OVERRIDE;
 
  private:
-  extensions::EventRouter* event_router_;
-  RequestManager request_manager_;
+  Profile* profile_;                       // Not owned.
+  extensions::EventRouter* event_router_;  // Not owned. May be NULL.
   ProvidedFileSystemInfo file_system_info_;
+  scoped_ptr<NotificationManagerInterface> notification_manager_;
+  RequestManager request_manager_;
 
   base::WeakPtrFactory<ProvidedFileSystemInterface> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(ProvidedFileSystem);