Delay updating jumplist to avoid blocking the file thread at start-up

chrome/browser/ui/views/frame/browser_view.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 37 matching lines @@
 class InfoBarContainerView;
 class InstantPreviewControllerViews;
 class LocationBarView;
 class StatusBubbleViews;
 class SearchViewController;
 class TabStrip;
 class TabStripModel;
 class ToolbarView;
 
 #if defined(OS_WIN)
+class JumpListListener;
 class JumpList;
 #endif
 
 #if defined(USE_ASH)
 class BrowserLauncherItemController;
 #endif
 
 namespace autofill {
 class PasswordGenerator;
 }
@@ skipping 495 matching lines @@
   // and returns true if the focus is currently on a WebContent.
   bool DoCutCopyPaste(void (content::RenderWidgetHost::*method)());
 
   // Shows the next app-modal dialog box, if there is one to be shown, or moves
   // an existing showing one to the front.
   void ActivateAppModalDialog() const;
 
   // If search mode is |MODE_NTP| and bookmark bar is visible, stack it at top.
   void MaybeStackBookmarkBarAtTop();
 
+#if defined(OS_WIN)

[sky, 2012/12/18 20:52:38]

and !aura

[Cait (Slow), 2012/12/19 19:27:01]

Done.

+  // Creates and initializes the |jumplist_|.
+  void CreateJumpList();
+#endif
+
   // Last focused view that issued a tab traversal.
   int last_focused_view_storage_id_;
 
   // The BrowserFrame that hosts this view.
   BrowserFrame* frame_;
 
   // The Browser object we are associated with.
   scoped_ptr<Browser> browser_;
 
   // BrowserView layout (LTR one is pictured here).
@@ skipping 106 matching lines @@
 
   // This object is initialized with the frame window HWND. This
   // object is also passed as a tick handler with the ticker_ object.
   // It is used to periodically monitor for hung plugin windows
   HungWindowDetector hung_window_detector_;
 
   // This object is invoked by hung_window_detector_ when it detects a hung
   // plugin window.
   HungPluginAction hung_plugin_action_;
 
+  // Helper class to ensure jumplist is not constructed until start-up is
+  // complete.
+  scoped_ptr<JumpListListener> jumplist_listener_;
+
   // The custom JumpList for Windows 7.
   scoped_refptr<JumpList> jumplist_;
+
 #endif
 
 #if defined(USE_ASH)
   scoped_ptr<BrowserLauncherItemController> launcher_item_controller_;
 #endif
 
   // The timer used to update frames for the Loading Animation.
   base::RepeatingTimer<BrowserView> loading_animation_timer_;
 
   UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_;
@@ skipping 12 matching lines @@
   gfx::ScopedSysColorChangeListener color_change_listener_;
 
   scoped_ptr<InstantPreviewControllerViews> preview_controller_;
 
   mutable base::WeakPtrFactory<BrowserView> activate_modal_dialog_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_