[fsp] Rename ObserveEntry with AddWatcher.

chrome/browser/chromeos/file_system_provider/operations/observe_directory.cc

-// 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.
-
-#include "chrome/browser/chromeos/file_system_provider/operations/observe_directory.h"
-
-#include <string>
-
-#include "chrome/common/extensions/api/file_system_provider.h"
-#include "chrome/common/extensions/api/file_system_provider_internal.h"
-
-namespace chromeos {
-namespace file_system_provider {
-namespace operations {
-
-ObserveDirectory::ObserveDirectory(
-    extensions::EventRouter* event_router,
-    const ProvidedFileSystemInfo& file_system_info,
-    const base::FilePath& directory_path,
-    bool recursive,
-    const storage::AsyncFileUtil::StatusCallback& callback)
-    : Operation(event_router, file_system_info),
-      directory_path_(directory_path),
-      recursive_(recursive),
-      callback_(callback) {
-}
-
-ObserveDirectory::~ObserveDirectory() {
-}
-
-bool ObserveDirectory::Execute(int request_id) {
-  using extensions::api::file_system_provider::ObserveDirectoryRequestedOptions;
-
-  ObserveDirectoryRequestedOptions options;
-  options.file_system_id = file_system_info_.file_system_id();
-  options.request_id = request_id;
-  options.directory_path = directory_path_.AsUTF8Unsafe();
-  options.recursive = recursive_;
-
-  return SendEvent(request_id,
-                   extensions::api::file_system_provider::
-                       OnObserveDirectoryRequested::kEventName,
-                   extensions::api::file_system_provider::
-                       OnObserveDirectoryRequested::Create(options));
-}
-
-void ObserveDirectory::OnSuccess(int /* request_id */,
-                                 scoped_ptr<RequestValue> /* result */,
-                                 bool has_more) {
-  callback_.Run(base::File::FILE_OK);
-}
-
-void ObserveDirectory::OnError(int /* request_id */,
-                               scoped_ptr<RequestValue> /* result */,
-                               base::File::Error error) {
-  callback_.Run(error);
-}
-
-}  // namespace operations
-}  // namespace file_system_provider
-}  // namespace chromeos