[fsp] Allow to create multiple observers for a directory, up to one per origin.

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 <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/chromeos/file_system_provider/observed_entry.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"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_observer.h"
+#include "url/gurl.h"
 
 class Profile;
 
 namespace base {
 class Time;
 }  // namespace base
 
 namespace net {
 class IOBuffer;
 }  // namespace net
@@ skipping 88 matching lines @@
       const base::FilePath& file_path,
       int64 length,
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   virtual AbortCallback WriteFile(
       int file_handle,
       net::IOBuffer* buffer,
       int64 offset,
       int length,
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   virtual AbortCallback ObserveDirectory(
+      const GURL& origin,
       const base::FilePath& directory_path,
       bool recursive,
+      bool persistent,
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   virtual void UnobserveEntry(
+      const GURL& origin,
       const base::FilePath& entry_path,
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   virtual const ProvidedFileSystemInfo& GetFileSystemInfo() const override;
   virtual RequestManager* GetRequestManager() override;
   virtual ObservedEntries* GetObservedEntries() override;
   virtual void AddObserver(ProvidedFileSystemObserver* observer) override;
   virtual void RemoveObserver(ProvidedFileSystemObserver* observer) override;
   virtual bool Notify(
       const base::FilePath& observed_path,
       ProvidedFileSystemObserver::ChangeType change_type,
@@ skipping 35 matching lines @@
   ObservedEntries observed_entries_;
 
   base::WeakPtrFactory<FakeProvidedFileSystem> 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_