Fix bug 105043: Panels [WIN]: For minimize panels, taskbar hover preview show the 4-pixel represent…

chrome/browser/ui/panels/panel_browser_window_cocoa.h

Index: chrome/browser/ui/panels/panel_browser_window_cocoa.h
diff --git a/chrome/browser/ui/panels/panel_browser_window_cocoa.h b/chrome/browser/ui/panels/panel_browser_window_cocoa.h
index 28ce935b0b2ba510d6be72272c31d13c7f6835c2..1d541a78eebd884bd6ae2d029a35a78b63870085 100644
--- a/chrome/browser/ui/panels/panel_browser_window_cocoa.h
+++ b/chrome/browser/ui/panels/panel_browser_window_cocoa.h
@@ -65,6 +65,9 @@ class PanelBrowserWindowCocoa : public NativePanel,
   virtual void SetPanelAlwaysOnTop(bool on_top) OVERRIDE;
   virtual void EnableResizeByMouse(bool enable) OVERRIDE;
   virtual void UpdatePanelMinimizeRestoreButtonVisibility() OVERRIDE;
+  virtual void PanelExpansionStateChanging(
+      Panel::ExpansionState old_state,
+      Panel::ExpansionState new_state) OVERRIDE;
 
   // These sizes are in screen coordinates.
   virtual gfx::Size WindowSizeFromContentSize(