Get rid of FileManagerPrivateAPI class

chrome/browser/chromeos/extensions/file_manager/event_router.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/extensions/file_manager/event_router.h"
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_change_registrar.h"
@@ skipping 354 matching lines @@
     const drive::JobInfo& info, const std::string& status)
     : job_info(info), status(status) {
 }
 
 EventRouter::EventRouter(Profile* profile)
     : pref_change_registrar_(new PrefChangeRegistrar),
       profile_(profile),
       device_event_router_(new DeviceEventRouterImpl(profile)),
       weak_factory_(this) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  ObserveEvents();
 }
 
 EventRouter::~EventRouter() {
 }
 
 void EventRouter::Shutdown() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   DLOG_IF(WARNING, !file_watchers_.empty())
       << "Not all file watchers are "
@@ skipping 545 matching lines @@
   // Do nothing.
 }
 
 void EventRouter::OnFormatCompleted(const std::string& device_path,
                                     bool success) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // Do nothing.
 }
 
 }  // namespace file_manager