Add Hide and Show to the app list SearchBoxView.

ui/app_list/views/app_list_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/app_list/views/app_list_view.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "base/win/windows_version.h"
 #include "ui/app_list/app_list_constants.h"
@@ skipping 172 matching lines @@
 
 void AppListView::Close() {
   app_list_main_view_->Close();
   delegate_->Dismiss();
 }
 
 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();
 }
 
 void AppListView::Paint(gfx::Canvas* canvas) {
   views::BubbleDelegateView::Paint(canvas);
   if (g_next_paint_callback) {
     g_next_paint_callback();
     g_next_paint_callback = NULL;
   }
@@ skipping 51 matching lines @@
   return GetWidget()->GetTopLevelWidget()->GetNativeWindow();
 #endif
 }
 #endif
 
 void AppListView::InitAsBubbleInternal(gfx::NativeView parent,
                                        PaginationModel* pagination_model,
                                        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_);
 #if defined(USE_AURA)
   app_list_main_view_->SetPaintToLayer(true);
   app_list_main_view_->SetFillsBoundsOpaquely(false);
   app_list_main_view_->layer()->SetMasksToBounds(true);
 #endif
 
   signin_view_ =
@@ skipping 217 matching lines @@
 #else
   speech_view_->SetVisible(recognizing);
   app_list_main_view_->SetVisible(!recognizing);
 
   // Needs to schedule paint of AppListView itself, to repaint the background.
   GetBubbleFrameView()->SchedulePaint();
 #endif
 }
 
 }  // namespace app_list