Prevents windows in chromeos from resizing bigger than their maximum size.

ash/wm/frame_painter.cc

Index: ash/wm/frame_painter.cc
diff --git a/ash/wm/frame_painter.cc b/ash/wm/frame_painter.cc
index 2ca029b08902eae9628b97e21dc9f0d118a5aef5..6430646245537c5317decc65d8fbf39abf3a7635 100644
--- a/ash/wm/frame_painter.cc
+++ b/ash/wm/frame_painter.cc
@@ -329,6 +329,10 @@ gfx::Size FramePainter::GetMinimumSize(views::NonClientFrameView* view) {
   return min_size;
 }
 
+gfx::Size FramePainter::GetMaximumSize(views::NonClientFrameView* view) {
+  return frame_->client_view()->GetMaximumSize();
+}
+
 int FramePainter::GetRightInset() const {
   gfx::Size close_size = close_button_->GetPreferredSize();
   gfx::Size size_button_size = size_button_->GetPreferredSize();