Fix Widget::InitParams::activatable logic

ui/views/widget/widget_delegate.h

Index: ui/views/widget/widget_delegate.h
diff --git a/ui/views/widget/widget_delegate.h b/ui/views/widget/widget_delegate.h
index 1637ae9886e14b95dd169e17343ddd717b16d8a8..b9903096c14c6920a544afbf2270f78859bff4e2 100644
--- a/ui/views/widget/widget_delegate.h
+++ b/ui/views/widget/widget_delegate.h
@@ -30,6 +30,11 @@ class VIEWS_EXPORT WidgetDelegate {
  public:
   WidgetDelegate();
 
+  // Sets the return value of CanActivate(). Default is true.
+  void set_can_activate(bool can_activate) {
+    can_activate_ = can_activate;
+  }
+
   // Called whenever the widget's position changes.
   virtual void OnWidgetMove();
 
@@ -181,6 +186,8 @@ class VIEWS_EXPORT WidgetDelegate {
  private:
   View* default_contents_view_;
 
+  bool can_activate_;
+
   DISALLOW_COPY_AND_ASSIGN(WidgetDelegate);
 };