chromeos: Add a missing RemoveObserver call in TestingAutomationProvider.

chrome/browser/automation/testing_automation_provider.cc

 // Copyright (c) 2011 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/automation/testing_automation_provider.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 184 matching lines @@
   BrowserList::AddObserver(this);
   registrar_.Add(this, chrome::NOTIFICATION_SESSION_END,
                  content::NotificationService::AllSources());
 #if defined(OS_CHROMEOS)
   chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
       AddObserver(this);
 #endif
 }
 
 TestingAutomationProvider::~TestingAutomationProvider() {
+#if defined(OS_CHROMEOS)
+  chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
+      RemoveObserver(this);
+#endif
   BrowserList::RemoveObserver(this);
 }
 
 IPC::Channel::Mode TestingAutomationProvider::GetChannelMode(
     bool use_named_interface) {
   if (use_named_interface)
 #if defined(OS_POSIX)
     return IPC::Channel::MODE_OPEN_NAMED_SERVER;
 #else
     return IPC::Channel::MODE_NAMED_SERVER;
@@ skipping 6169 matching lines @@
 
   Send(reply_message_);
   redirect_query_ = 0;
   reply_message_ = NULL;
 }
 
 void TestingAutomationProvider::OnRemoveProvider() {
   if (g_browser_process)
     g_browser_process->GetAutomationProviderList()->RemoveProvider(this);
 }