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

ui/views/window/non_client_view.h

Index: ui/views/window/non_client_view.h
diff --git a/ui/views/window/non_client_view.h b/ui/views/window/non_client_view.h
index e5be44ef2814a4f7d34536d19bf16b1204a2b8ed..6fe57be276f86c918d5be550e5c836b12b596ade 100644
--- a/ui/views/window/non_client_view.h
+++ b/ui/views/window/non_client_view.h
@@ -48,7 +48,7 @@ class VIEWS_EXPORT NonClientFrameView : public View {
                              int resize_border_thickness,
                              int top_resize_corner_height,
                              int resize_corner_width,
-                             bool can_resize);
+                             bool can_resize) const;
 
   // Returns the bounds (in this View's parent's coordinates) that the client
   // view should be laid out within.
@@ -61,7 +61,7 @@ class VIEWS_EXPORT NonClientFrameView : public View {
   // the parent NonClientView because that makes it more difficult to calculate
   // hittests for regions that are partially obscured by the ClientView, e.g.
   // HTSYSMENU.
-  virtual int NonClientHitTest(const gfx::Point& point) = 0;
+  virtual int NonClientHitTest(const gfx::Point& point) const = 0;
   virtual void GetWindowMask(const gfx::Size& size,
                              gfx::Path* window_mask) = 0;
   virtual void ResetWindowControls() = 0;
@@ -173,7 +173,7 @@ class VIEWS_EXPORT NonClientView : public View {
 
   // Determines the windows HT* code when the mouse cursor is at the
   // specified point, in window coordinates.
-  int NonClientHitTest(const gfx::Point& point);
+  int NonClientHitTest(const gfx::Point& point) const;
 
   // Returns a mask to be used to clip the top level window for the given
   // size. This is used to create the non-rectangular window shape.