Allow platform apps to specify a maximum size for the shell container.

ui/views/widget/native_widget_win.cc

Index: ui/views/widget/native_widget_win.cc
diff --git a/ui/views/widget/native_widget_win.cc b/ui/views/widget/native_widget_win.cc
index da6f1fca9741cbb8abfd027fb5d4c4f2ad7d8f88..6bd016ce356ac1616e45b42a7f7f0ce94656e87e 100644
--- a/ui/views/widget/native_widget_win.cc
+++ b/ui/views/widget/native_widget_win.cc
@@ -1385,17 +1385,24 @@ LRESULT NativeWidgetWin::OnGetObject(UINT uMsg,
 
 void NativeWidgetWin::OnGetMinMaxInfo(MINMAXINFO* minmax_info) {
   gfx::Size min_window_size(delegate_->GetMinimumSize());
-  // Add the native frame border size to the minimum size if the view reports
-  // its size as the client size.
+  gfx::Size max_window_size(delegate_->GetMaximumSize());
+  // Add the native frame border size to the minimum and maximum size if the
+  // view reports its size as the client size.
   if (WidgetSizeIsClientSize()) {
     CRect client_rect, window_rect;
     GetClientRect(&client_rect);
     GetWindowRect(&window_rect);
     window_rect -= client_rect;
     min_window_size.Enlarge(window_rect.Width(), window_rect.Height());
+    if (!max_window_size.IsEmpty())
+      max_window_size.Enlarge(window_rect.Width(), window_rect.Height());
   }
   minmax_info->ptMinTrackSize.x = min_window_size.width();
   minmax_info->ptMinTrackSize.y = min_window_size.height();
+  if (!max_window_size.IsEmpty()) {
+    minmax_info->ptMaxTrackSize.x = max_window_size.width();
+    minmax_info->ptMaxTrackSize.y = max_window_size.height();
+  }
   SetMsgHandled(FALSE);
 }