[fsp] Add notifications in case of slow operations.

chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h

Index: chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h
diff --git a/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h b/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h
index 18feb7bb233c9e82c47336c8332ca1dfbf48b394..bc16e1abbe7cdef906ca9dd90055e785709c0ba3 100644
--- a/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h
+++ b/chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h
@@ -11,14 +11,12 @@
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 
+class Profile;
+
 namespace net {
 class IOBuffer;
 }  // namespace net
 
-namespace extensions {
-class EventRouter;
-}  // namespace extensions
-
 namespace chromeos {
 namespace file_system_provider {
 
@@ -65,7 +63,7 @@ class FakeProvidedFileSystem : public ProvidedFileSystemInterface {
   // Factory callback, to be used in Service::SetFileSystemFactory(). The
   // |event_router| argument can be NULL.
   static ProvidedFileSystemInterface* Create(
-      extensions::EventRouter* event_router,
+      Profile* profile,
       const ProvidedFileSystemInfo& file_system_info);
 
  private: