Allow updating arc widget bounds in maximize/fullscreen state.

ash/common/wm/default_state.cc

Index: ash/common/wm/default_state.cc
diff --git a/ash/common/wm/default_state.cc b/ash/common/wm/default_state.cc
index 07c03630d52667078fd6ffdd8c4fcaa047b96a4d..e7aa9e21265f821e039772f6541ea056e37a9cbb 100644
--- a/ash/common/wm/default_state.cc
+++ b/ash/common/wm/default_state.cc
@@ -533,7 +533,8 @@ void DefaultState::SetBounds(WindowState* window_state,
     wm::AdjustBoundsSmallerThan(work_area_in_parent.size(), &child_bounds);
     window_state->AdjustSnappedBounds(&child_bounds);
     window_state->SetBoundsDirect(child_bounds);
-  } else if (!SetMaximizedOrFullscreenBounds(window_state)) {
+  } else if (!SetMaximizedOrFullscreenBounds(window_state) ||
+             window_state->allow_set_bounds_in_maximized()) {
     window_state->SetBoundsConstrained(event->requested_bounds());
   }
 }