Add Hide and Show to the app list SearchBoxView.

ui/app_list/views/app_list_view.cc

Index: ui/app_list/views/app_list_view.cc
diff --git a/ui/app_list/views/app_list_view.cc b/ui/app_list/views/app_list_view.cc
index 21163f47c0ae3c4a733a85ea5c3fd1d821d7055b..6f2c41add67141aa21ab6d79490094d8500c2c7b 100644
--- a/ui/app_list/views/app_list_view.cc
+++ b/ui/app_list/views/app_list_view.cc
@@ -190,6 +190,10 @@ void AppListView::UpdateBounds() {
   SizeToContents();
 }
 
+void AppListView::RepaintBackground() {

[tapted, 2014/03/04 05:27:01]

calls to `SchedulePaint()` propagate up through to the root of the view
hierarchy. Can you just add an override:

virtual void AppListView::SchedulePaintInRect(const gfx::Rect& rect) {
  BubbleDelegateView::SchedulePaintInRect(rect);
  GetBubbleFrameView()->SchedulePaint();
}

+  GetBubbleFrameView()->SchedulePaint();
+}
+
 gfx::Size AppListView::GetPreferredSize() {
   return app_list_main_view_->GetPreferredSize();
 }
@@ -261,7 +265,8 @@ void AppListView::InitAsBubbleInternal(gfx::NativeView parent,
                                        views::BubbleBorder::Arrow arrow,
                                        bool border_accepts_events,
                                        const gfx::Vector2d& anchor_offset) {
-  app_list_main_view_ = new AppListMainView(delegate_.get(),
+  app_list_main_view_ = new AppListMainView(this,
+                                            delegate_.get(),
                                             pagination_model,
                                             parent);
   AddChildView(app_list_main_view_);