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

ui/views/window/client_view.h

Index: ui/views/window/client_view.h
diff --git a/ui/views/window/client_view.h b/ui/views/window/client_view.h
index 8c890d70b7c1662ac0b36bf135a0e254df41d68d..17b26e2782a76f55b0e552b88ad0f74defffac26 100644
--- a/ui/views/window/client_view.h
+++ b/ui/views/window/client_view.h
@@ -54,7 +54,7 @@ class VIEWS_EXPORT ClientView : public View {
   // to detect if regions within the client area count as parts of the "non-
   // client" area. A good example of this is the size box at the bottom right
   // corner of resizable dialog boxes.
-  virtual int NonClientHitTest(const gfx::Point& point);
+  virtual int NonClientHitTest(const gfx::Point& point) const;
 
   // Overridden from View:
   virtual gfx::Size GetPreferredSize() OVERRIDE;