aura: Implement app list M19 mock.

ash/app_list/app_list_view.h

Index: ash/app_list/app_list_view.h
diff --git a/ash/app_list/app_list_view.h b/ash/app_list/app_list_view.h
index 17bfceca4c1834be5563ba58b2bb372fe81af860..40071c378619560417553c593f2d294de948b9d2 100644
--- a/ash/app_list/app_list_view.h
+++ b/ash/app_list/app_list_view.h
@@ -6,9 +6,9 @@
 #define ASH_APP_LIST_APP_LIST_VIEW_H_
 #pragma once
 
-#include "ash/app_list/app_list_item_view_listener.h"
 #include "ash/ash_export.h"
 #include "base/memory/scoped_ptr.h"
+#include "ui/views/controls/button/button.h"
 #include "ui/views/widget/widget_delegate.h"
 
 namespace views {
@@ -18,16 +18,16 @@ class View;
 namespace ash {
 
 class AppListModel;
+class AppListModelView;
 class AppListViewDelegate;
 
 // AppListView is the top-level view and controller of app list UI. It creates
 // and hosts a AppListModelView and passes AppListModel to it for display.
 class ASH_EXPORT AppListView : public views::WidgetDelegateView,
-                                      public AppListItemViewListener {
+                               public views::ButtonListener {
  public:
-  // Takes ownership of |model| and |delegate|.
-  AppListView(AppListModel* model,
-              AppListViewDelegate* delegate,
+  // Takes ownership of |delegate|.
+  AppListView(AppListViewDelegate* delegate,
               const gfx::Rect& bounds);
   virtual ~AppListView();
 
@@ -38,18 +38,27 @@ class ASH_EXPORT AppListView : public views::WidgetDelegateView,
   // Initializes the window.
   void Init(const gfx::Rect& bounds);
 
+  // Updates model using query text in search box.
+  void UpdateModel();
+
+  // Overridden from views::WidgetDelegateView:
+  virtual views::View* GetInitiallyFocusedView() OVERRIDE;
+
   // Overridden from views::View:
+  virtual void Layout() OVERRIDE;
   virtual bool OnKeyPressed(const views::KeyEvent& event) OVERRIDE;
   virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
 
-  // Overridden from AppListItemModelViewListener:
-  virtual void AppListItemActivated(AppListItemView* sender,
-                                    int event_flags) OVERRIDE;
+  // Overridden from views::ButtonListener:
+  virtual void ButtonPressed(views::Button* sender,
+                             const views::Event& event) OVERRIDE;
 
   scoped_ptr<AppListModel> model_;
 
   scoped_ptr<AppListViewDelegate> delegate_;
 
+  AppListModelView* model_view_;
+
   DISALLOW_COPY_AND_ASSIGN(AppListView);
 };