Replace BrowserProces::AddRefModule/RemoveModule by ScopedKeepAlive

chrome/browser/ui/browser.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_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 48 matching lines @@
 
 class BrowserContentSettingBubbleModelDelegate;
 class BrowserInstantController;
 class BrowserSyncedWindowDelegate;
 class BrowserToolbarModelDelegate;
 class BrowserLiveTabContext;
 class BrowserWindow;
 class FindBarController;
 class PrefService;
 class Profile;
+class ScopedKeepAlive;
 class SearchDelegate;
 class SearchModel;
 class StatusBubble;
 class TabStripModel;
 class TabStripModelDelegate;
 class ValidationMessageBubble;
 struct WebApplicationInfo;
 
 namespace chrome {
 class BrowserCommandController;
@@ skipping 331 matching lines @@
 
   // Closes the tab-modal signin flow opened with ShowModalSigninWindow, if it's
   // open. Does nothing otherwise.
   void CloseModalSigninWindow();
 
   // Shows the tab modal sync confirmation dialog that informs the user about
   // sync and gives them a chance to abort signin under the tab modal signin
   // flow.
   void ShowModalSyncConfirmationWindow();
 
+  // Used to register a KeepAlive to affect the Chrome lifetime. The KeepAlive
+  // is registered when the browser is added to the browser list, and unregisted
+  // when it is removed from it.
+  void RegisterKeepAlive();
+  void UnregisterKeepAlive();
+
   // Interface implementations ////////////////////////////////////////////////
 
   // Overridden from content::PageNavigator:
   content::WebContents* OpenURL(const content::OpenURLParams& params) override;
 
   // Overridden from TabStripModelObserver:
   void TabInsertedAt(content::WebContents* contents,
                      int index,
                      bool foreground) override;
   void TabClosingAt(TabStripModel* tab_strip_model,
@@ skipping 561 matching lines @@
 
   scoped_ptr<chrome::BrowserCommandController> command_controller_;
 
   // True if the browser window has been shown at least once.
   bool window_has_shown_;
 
   scoped_ptr<ValidationMessageBubble> validation_message_bubble_;
 
   SigninViewController signin_view_controller_;
 
+  scoped_ptr<ScopedKeepAlive> keep_alive_;
+
   // The following factory is used for chrome update coalescing.
   base::WeakPtrFactory<Browser> chrome_updater_factory_;
 
   // The following factory is used to close the frame at a later time.
   base::WeakPtrFactory<Browser> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_