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

ui/views/window/client_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/window/client_view.h"
 
 #include "base/logging.h"
 #include "ui/base/accessibility/accessible_view_state.h"
 #include "ui/base/hit_test.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 
 namespace views {
 
 // static
 const char ClientView::kViewClassName[] =
     "ui/views/window/ClientView";
 
 ///////////////////////////////////////////////////////////////////////////////
 // ClientView, public:
 
 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;
 }
 
 DialogClientView* ClientView::AsDialogClientView() {
   return NULL;
 }
 
 const DialogClientView* ClientView::AsDialogClientView() const {
   return NULL;
 }
@@ skipping 52 matching lines @@
   if (details.is_add && details.child == this) {
     DCHECK(GetWidget());
     DCHECK(contents_view_); // |contents_view_| must be valid now!
     // Insert |contents_view_| at index 0 so it is first in the focus chain.
     // (the OK/Cancel buttons are inserted before contents_view_)
     AddChildViewAt(contents_view_, 0);
   }
 }
 
 }  // namespace views