[ash-md] Updates window title if it is changed after entering overview

ui/views/controls/button/label_button.cc

Index: ui/views/controls/button/label_button.cc
diff --git a/ui/views/controls/button/label_button.cc b/ui/views/controls/button/label_button.cc
index 0618cca6cfe71a213a9cb613132866d85843f938..53b92479495add0133a42dfd94401d93bb5ebb8c 100644
--- a/ui/views/controls/button/label_button.cc
+++ b/ui/views/controls/button/label_button.cc
@@ -541,6 +541,7 @@ void LabelButton::SetTextInternal(const base::string16& text) {
 void LabelButton::ChildPreferredSizeChanged(View* child) {
   ResetCachedPreferredSize();
   PreferredSizeChanged();
+  Layout();

[sadrul, 2016/07/12 16:57:42]

Interesting. Looks like PreferredSizeChanged() invalidates the layout, however,
the relayout never happens? Should we fix that instead?

[varkha, 2016/07/12 19:58:44]

Discussed this offline. sadrul@ thought we could have 'ScheduleLayout()',
similar to SchedulePaint(). We already have InvalidateLayout() and perhaps that
could ensure that Layout() happens before the next paint.

Still in this case it is the Layout that triggers paint and there is nothing
else in this scenario like resizing to trigger layout or paint. This makes it
tricky.

 }
 
 ui::NativeTheme::Part LabelButton::GetThemePart() const {