Experimental app list: Added "All apps" button on start page.

ui/app_list/views/start_page_view.h

Index: ui/app_list/views/start_page_view.h
diff --git a/ui/app_list/views/start_page_view.h b/ui/app_list/views/start_page_view.h
index 958f2cc6cefa0fb262416f96d00f6b7c0daf1d76..ad6f8ca79e167bb05ebc6423aecebb8f5726932d 100644
--- a/ui/app_list/views/start_page_view.h
+++ b/ui/app_list/views/start_page_view.h
@@ -16,9 +16,11 @@
 
 namespace app_list {
 
+class AllAppsTileItemView;
 class AppListMainView;
 class AppListViewDelegate;
 class SearchResultListView;
+class SearchResultTileItemView;
 class TileItemView;
 
 // The start page for the experimental app list.
@@ -37,7 +39,10 @@ class APP_LIST_EXPORT StartPageView : public views::View,
 
   void UpdateForTesting();
 
-  const std::vector<TileItemView*>& tile_views() const { return tile_views_; }
+  const std::vector<SearchResultTileItemView*>& tile_views() const {
+    return search_result_tile_views_;
+  }
+  TileItemView* all_apps_button() const;
   SearchBoxView* dummy_search_box_view() { return search_box_view_; }
 
   // Overridden from views::View:
@@ -85,7 +90,8 @@ class APP_LIST_EXPORT StartPageView : public views::View,
   views::View* instant_container_;  // Owned by views hierarchy.
   views::View* tiles_container_;    // Owned by views hierarchy.
 
-  std::vector<TileItemView*> tile_views_;
+  std::vector<SearchResultTileItemView*> search_result_tile_views_;
+  AllAppsTileItemView* all_apps_button_;
 
   ShowState show_state_;