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

ui/views/window/client_view.cc

Index: ui/views/window/client_view.cc
diff --git a/ui/views/window/client_view.cc b/ui/views/window/client_view.cc
index 7edc5f4d5b98fac346eecbfebae05cd82f418fcf..5e260517c964da66f3d459565a218f5945555535 100644
--- a/ui/views/window/client_view.cc
+++ b/ui/views/window/client_view.cc
@@ -23,7 +23,7 @@ ClientView::ClientView(Widget* widget, View* contents_view)
     : contents_view_(contents_view) {
 }
 
-int ClientView::NonClientHitTest(const gfx::Point& point) {
+int ClientView::NonClientHitTest(const gfx::Point& point) const {
   return bounds().Contains(point) ? HTCLIENT : HTNOWHERE;
 }