Make the maximize button more easily hittable when there is a huge amount of tabs present

chrome/browser/ui/views/panels/panel_frame_view.h

Index: chrome/browser/ui/views/panels/panel_frame_view.h
diff --git a/chrome/browser/ui/views/panels/panel_frame_view.h b/chrome/browser/ui/views/panels/panel_frame_view.h
index e8a90ad0432195da69f162356b3524ed50658009..d846dfa1b4e47c2b87fb499ec6ed0d0f1e3e87f7 100644
--- a/chrome/browser/ui/views/panels/panel_frame_view.h
+++ b/chrome/browser/ui/views/panels/panel_frame_view.h
@@ -59,7 +59,7 @@ class PanelFrameView : public views::NonClientFrameView,
   virtual gfx::Rect GetBoundsForClientView() const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsForClientBounds(
       const gfx::Rect& client_bounds) const OVERRIDE;
-  virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
+  virtual int NonClientHitTest(const gfx::Point& point) const OVERRIDE;
   virtual void GetWindowMask(const gfx::Size& size,
                              gfx::Path* window_mask) OVERRIDE;
   virtual void ResetWindowControls() OVERRIDE;