[fsp] Add notifications in case of slow operations.

chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_
 
 #include <map>
 
 #include "base/memory/weak_ptr.h"
 #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 {
 
 class RequestManager;
 
 extern const char kFakeFileName[];
 extern const char kFakeFilePath[];
 extern const char kFakeFileText[];
 extern const size_t kFakeFileSize;
 
@@ skipping 26 matching lines @@
                         int64 offset,
                         int length,
                         const ReadChunkReceivedCallback& callback) OVERRIDE;
   virtual const ProvidedFileSystemInfo& GetFileSystemInfo() const OVERRIDE;
   virtual RequestManager* GetRequestManager() OVERRIDE;
   virtual base::WeakPtr<ProvidedFileSystemInterface> GetWeakPtr() OVERRIDE;
 
   // 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:
   typedef std::map<int, base::FilePath> OpenedFilesMap;
 
   ProvidedFileSystemInfo file_system_info_;
   OpenedFilesMap opened_files_;
   int last_file_handle_;
 
   base::WeakPtrFactory<ProvidedFileSystemInterface> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(FakeProvidedFileSystem);
 };
 
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_