FBTF: Move a bunch of code to the headers and remove includes.

chrome/browser/automation/automation_extension_tracker.cc

 // Copyright (c) 2010 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/automation_extension_tracker.h"
 #include "chrome/browser/extensions/extensions_service.h"
 #include "chrome/browser/profile.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/notification_service.h"
 
 AutomationExtensionTracker::AutomationExtensionTracker(
     IPC::Message::Sender* automation)
     : AutomationResourceTracker<Extension*>(automation) {
   registrar_.Add(this, NotificationType::EXTENSION_UNLOADED,
                  NotificationService::AllSources());
   registrar_.Add(this, NotificationType::EXTENSION_UNLOADED_DISABLED,
                  NotificationService::AllSources());
 }
 
 AutomationExtensionTracker::~AutomationExtensionTracker() {
 }
 
+void AutomationExtensionTracker::AddObserver(Extension* resource) {}
+
+void AutomationExtensionTracker::RemoveObserver(Extension* resource) {}
+
 void AutomationExtensionTracker::Observe(NotificationType type,
                                          const NotificationSource& source,
                                          const NotificationDetails& details) {
   if (type != NotificationType::EXTENSION_UNLOADED &&
       type != NotificationType::EXTENSION_UNLOADED_DISABLED)
     return;
 
   Extension* extension = Details<Extension>(details).ptr();
   Profile* profile = Source<Profile>(source).ptr();
   if (profile) {
     ExtensionsService* service = profile->GetExtensionsService();
     if (service) {
       // Remove this extension only if it is uninstalled, not just disabled.
       // If it is being uninstalled, the extension will not be in the regular
       // or disabled list.
       if (!service->GetExtensionById(extension->id(), true))
         CloseResource(extension);
     }
   }
 }