Fix handling of minimized panel count

chrome/browser/ui/panels/panel.h

Index: chrome/browser/ui/panels/panel.h
diff --git a/chrome/browser/ui/panels/panel.h b/chrome/browser/ui/panels/panel.h
index 495f05c6e130741cd0d2fb59fbd5bb9e4e1dc738..b0059e768295fadb385e060c3fc5f48902766b1c 100644
--- a/chrome/browser/ui/panels/panel.h
+++ b/chrome/browser/ui/panels/panel.h
@@ -225,7 +225,6 @@ class Panel : public BrowserWindow,
   void set_panel_strip(PanelStrip* new_strip) { panel_strip_ = new_strip; }
 
   ExpansionState expansion_state() const { return expansion_state_; }
-  ExpansionState old_expansion_state() const { return old_expansion_state_; }
   const gfx::Size& min_size() const { return min_size_; }
   const gfx::Size& max_size() const { return max_size_; }
   bool auto_resizable() const { return auto_resizable_; }
@@ -317,7 +316,6 @@ class Panel : public BrowserWindow,
   NativePanel* native_panel_;  // Weak, owns us.
 
   ExpansionState expansion_state_;
-  ExpansionState old_expansion_state_;
 
   // Indicates whether the panel app icon is visible in the taskbar.
   bool app_icon_visible_;