Selecting an app window from the overview mode maximizes the window only if it's maximizable

athena/activity/activity_widget_delegate.cc

Index: athena/activity/activity_widget_delegate.cc
diff --git a/athena/activity/activity_widget_delegate.cc b/athena/activity/activity_widget_delegate.cc
index 3c638e8564afc8ad95d00c6c7998af660fc2da3d..b387b50a6f37d570e7de800493773f09d45c0d53 100644
--- a/athena/activity/activity_widget_delegate.cc
+++ b/athena/activity/activity_widget_delegate.cc
@@ -18,6 +18,18 @@ ActivityWidgetDelegate::ActivityWidgetDelegate(ActivityViewModel* view_model)
 ActivityWidgetDelegate::~ActivityWidgetDelegate() {
 }
 
+bool ActivityWidgetDelegate::CanResize() const {
+  return true;
+}
+
+bool ActivityWidgetDelegate::CanMaximize() const {
+  return true;
+}
+
+bool ActivityWidgetDelegate::CanMinimize() const {
+  return true;
+}
+
 base::string16 ActivityWidgetDelegate::GetWindowTitle() const {
   return view_model_->GetTitle();
 }