FBTF: Move the TabRestoreService::Observer into its own file.

chrome/browser/browser.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/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 52 matching lines @@
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profile.h"
 #if defined(ENABLE_REMOTING)
 #include "chrome/browser/remoting/remoting_setup_flow.h"
 #endif
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/renderer_host/site_instance.h"
 #include "chrome/browser/service/service_process_control_manager.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sessions/session_types.h"
+#include "chrome/browser/sessions/tab_restore_service.h"
 #include "chrome/browser/status_bubble.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/sync_ui_util.h"
 #include "chrome/browser/tab_closeable_state_watcher.h"
 #include "chrome/browser/tab_contents/interstitial_page.h"
 #include "chrome/browser/tab_contents/match_preview.h"
 #include "chrome/browser/tab_contents/navigation_controller.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/browser/tab_contents/tab_contents_view.h"
@@ skipping 3939 matching lines @@
 }
 
 void Browser::TabRestoreServiceDestroyed(TabRestoreService* service) {
   if (!tab_restore_service_)
     return;
 
   DCHECK_EQ(tab_restore_service_, service);
   tab_restore_service_->RemoveObserver(this);
   tab_restore_service_ = NULL;
 }