Make the session restore bubble not close on navigation

chrome/browser/ui/views/session_crashed_bubble_view.h

 // Copyright 2014 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_SESSION_CRASHED_BUBBLE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "chrome/browser/ui/session_crashed_bubble.h"
-#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
-#include "content/public/browser/reload_type.h"
-#include "content/public/browser/web_contents_observer.h"
 #include "ui/views/bubble/bubble_dialog_delegate.h"
 #include "ui/views/controls/styled_label_listener.h"
 
 namespace views {
 class Checkbox;
 class Widget;
 }
 
-namespace content {
-class WebContents;
-}
-
 class Browser;
 
-// It creates a session restore request bubble when the previous session has
-// crashed. It also presents an option to enable metrics reporting, if it not
-// enabled already.
+// SessionCrashedBubbleView shows a bubble allowing the user to restore the
+// previous session. If metrics reporting is not enabled a checkbox is presented
+// allowing the user to turn it on.
 class SessionCrashedBubbleView : public SessionCrashedBubble,
                                  public views::BubbleDialogDelegateView,
-                                 public views::StyledLabelListener,
-                                 public content::WebContentsObserver,
-                                 public content::NotificationObserver,
-                                 public TabStripModelObserver {
+                                 public views::StyledLabelListener {
  public:
   // A helper class that listens to browser removal event.
   class BrowserRemovalObserver;
 
   // Creates and shows the session crashed bubble, with |uma_opted_in_already|
   // indicating whether the user has already opted-in to UMA. It will be called
   // by Show. It takes ownership of |browser_observer|.
   static void ShowForReal(
       std::unique_ptr<BrowserRemovalObserver> browser_observer,
       bool uma_opted_in_already);
 
  private:
   SessionCrashedBubbleView(views::View* anchor_view,
                            Browser* browser,
-                           content::WebContents* web_contents,
                            bool offer_uma_optin);
   ~SessionCrashedBubbleView() override;
 
   // WidgetDelegateView methods.
   base::string16 GetWindowTitle() const override;
   bool ShouldShowWindowTitle() const override;
   bool ShouldShowCloseButton() const override;
   void OnWidgetDestroying(views::Widget* widget) override;
   views::View* CreateFootnoteView() override;
   bool Accept() override;
   bool Close() override;
   int GetDialogButtons() const override;
   base::string16 GetDialogButtonLabel(ui::DialogButton button) const override;
 
   // views::BubbleDialogDelegateView methods.
   void Init() override;
 
   // views::StyledLabelListener methods.
   void StyledLabelLinkClicked(views::StyledLabel* label,
                               const gfx::Range& range,
                               int event_flags) override;
 
-  // content::WebContentsObserver methods.
-  void DidFinishLoad(content::RenderFrameHost* render_frame_host,
-                     const GURL& validated_url) override;
-  void WasShown() override;
-  void WasHidden() override;
-
-  // content::NotificationObserver methods.
-  void Observe(int type,
-               const content::NotificationSource& source,
-               const content::NotificationDetails& details) override;
-
-  // TabStripModelObserver methods.
-  // When the tab with current bubble is being dragged and dropped to a new
-  // window or to another window, the bubble will be dismissed as if the user
-  // chose not to restore the previous session.
-  void TabDetachedAt(content::WebContents* contents, int index) override;
-
   // Restore previous session after user selects so.
   void RestorePreviousSession();
 
-  // Close and destroy the bubble.
-  void CloseBubble();
-
-  content::NotificationRegistrar registrar_;
-
   // Used for opening the question mark link as well as access the tab strip.
   Browser* browser_;
 
-  // The web content associated with current bubble.
-  content::WebContents* web_contents_;
-
   // Checkbox for the user to opt-in to UMA reporting.
   views::Checkbox* uma_option_;
 
   // Whether or not the UMA opt-in option should be shown.
   bool offer_uma_optin_;
 
-  // Whether or not the first navigation was ignored. This is needed because the
-  // bubble shouldn't go away when the new tab page loads after a crash.
-  bool first_navigation_ignored_;
-
   // Whether or not the user chose to restore previous session. It is used to
   // collect bubble usage stats.
   bool restored_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionCrashedBubbleView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_SESSION_CRASHED_BUBBLE_VIEW_H_