[Mac] Delay TabContents::Close() when event-tracking.

chrome/browser/tab_contents/tab_contents_view_mac.h

 // Copyright (c) 2009 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_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <string>
@@ skipping 26 matching lines @@
 
 // Mac-specific implementation of the TabContentsView. It owns an NSView that
 // contains all of the contents of the tab and associated child views.
 class TabContentsViewMac : public TabContentsView,
                            public NotificationObserver {
  public:
   // The corresponding TabContents is passed in the constructor, and manages our
   // lifetime. This doesn't need to be the case, but is this way currently
   // because that's what was easiest when they were split.
   explicit TabContentsViewMac(TabContents* web_contents);
+  virtual ~TabContentsViewMac();
 
   // TabContentsView implementation --------------------------------------------
 
   virtual void CreateView(const gfx::Size& initial_size);
   virtual RenderWidgetHostView* CreateViewForWidget(
       RenderWidgetHost* render_widget_host);
   virtual gfx::NativeView GetNativeView() const;
   virtual gfx::NativeView GetContentNativeView() const;
   virtual gfx::NativeWindow GetTopLevelNativeWindow() const;
   virtual void GetContainerBounds(gfx::Rect* out) const;
   virtual void RenderViewCreated(RenderViewHost* host);
   virtual void SetPageTitle(const std::wstring& title);
   virtual void OnTabCrashed();
   virtual void SizeContents(const gfx::Size& size);
   virtual void Focus();
   virtual void SetInitialFocus();
   virtual void StoreFocus();
   virtual void RestoreFocus();
   virtual RenderWidgetHostView* CreateNewWidgetInternal(int route_id,
                                                         bool activatable);
   virtual void ShowCreatedWidgetInternal(RenderWidgetHostView* widget_host_view,
                                          const gfx::Rect& initial_pos);
+  virtual bool IsEventTracking() const;
+  virtual void CloseTabAfterEventTracking();
 
   // Backend implementation of RenderViewHostDelegate::View.
   virtual void ShowContextMenu(const ContextMenuParams& params);
   virtual void StartDragging(const WebDropData& drop_data,
                              WebKit::WebDragOperationsMask allowed_operations);
   virtual void UpdateDragCursor(WebKit::WebDragOperation operation);
   virtual void GotFocus();
   virtual void TakeFocus(bool reverse);
   virtual bool HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
 
   // NotificationObserver implementation ---------------------------------------
 
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
+  // A helper method for closing the tab in the
+  // CloseTabAfterEventTracking() implementation.
+  void CloseTab();
+
  private:
   // The Cocoa NSView that lives in the view hierarchy.
   scoped_nsobject<TabContentsViewCocoa> cocoa_view_;
 
   // Keeps track of which NSView has focus so we can restore the focus when
   // focus returns.
   scoped_nsobject<FocusTracker> focus_tracker_;
 
   // Used to get notifications about renderers coming and going.
   NotificationRegistrar registrar_;
 
   // Used to render the sad tab. This will be non-NULL only when the sad tab is
   // visible.
   scoped_nsobject<SadTabView> sad_tab_;
 
   // The page content's intrinsic width.
   int preferred_width_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewMac);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_