Reland: Make popup notification active on being clicked

ui/message_center/views/toast_contents_view.cc

Index: ui/message_center/views/toast_contents_view.cc
diff --git a/ui/message_center/views/toast_contents_view.cc b/ui/message_center/views/toast_contents_view.cc
index e20b03e7f161de1d8f9499f8b5f1c14fde9a3d63..44dfcf410fee001e14df3c944e6540386a7398d4 100644
--- a/ui/message_center/views/toast_contents_view.cc
+++ b/ui/message_center/views/toast_contents_view.cc
@@ -44,6 +44,9 @@ const int kFadeInOutDuration = 200;
 }  // namespace.
 
 // static
+const char ToastContentsView::kViewClassName[] = "ToastContentsView";
+
+// static
 gfx::Size ToastContentsView::GetToastSizeForView(const views::View* view) {
   int width = kNotificationWidth + view->GetInsets().width();
   return gfx::Size(width, view->GetHeightForWidth(width));
@@ -168,6 +171,12 @@ void ToastContentsView::SetBoundsWithAnimation(gfx::Rect new_bounds) {
   bounds_animation_->Show();
 }
 
+void ToastContentsView::ActivateToast() {
+  set_can_activate(true);
+  if (GetWidget())
+    GetWidget()->Activate();
+}
+
 void ToastContentsView::StartFadeIn() {
   // The decrement is done in OnBoundsAnimationEndedOrCancelled callback.
   if (collection_)
@@ -315,6 +324,10 @@ void ToastContentsView::GetAccessibleNodeData(ui::AXNodeData* node_data) {
   node_data->role = ui::AX_ROLE_WINDOW;
 }
 
+const char* ToastContentsView::GetClassName() const {
+  return kViewClassName;
+}
+
 void ToastContentsView::ClickOnNotification(
     const std::string& notification_id) {
   if (collection_)