Making answer card to behave like other results.

ui/app_list/views/contents_view.h

Index: ui/app_list/views/contents_view.h
diff --git a/ui/app_list/views/contents_view.h b/ui/app_list/views/contents_view.h
index 435ff00450ed60e7b75bcf260597b53eab18d2a8..62a52cd291e99b3f672c9a64bdda4dc0c155021d 100644
--- a/ui/app_list/views/contents_view.h
+++ b/ui/app_list/views/contents_view.h
@@ -13,7 +13,6 @@
 #include "base/macros.h"
 #include "ui/app_list/app_list_export.h"
 #include "ui/app_list/app_list_model.h"
-#include "ui/app_list/app_list_model_observer.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/app_list/pagination_model_observer.h"
 #include "ui/views/view.h"
@@ -43,8 +42,7 @@ class StartPageView;
 // interface for switching between launcher pages, and animates the transition
 // between them.
 class APP_LIST_EXPORT ContentsView : public views::View,
-                                     public PaginationModelObserver,
-                                     public AppListModelObserver {
+                                     public PaginationModelObserver {
  public:
   explicit ContentsView(AppListMainView* app_list_main_view);
   ~ContentsView() override;
@@ -136,9 +134,6 @@ class APP_LIST_EXPORT ContentsView : public views::View,
   void TransitionStarted() override;
   void TransitionChanged() override;
 
-  // Overridden from AppListModelObserver:
-  void OnSearchAnswerAvailableChanged(bool has_answer) override;
-
  private:
   // Sets the active launcher page, accounting for whether the change is for
   // search results.
@@ -190,10 +185,6 @@ class APP_LIST_EXPORT ContentsView : public views::View,
   StartPageView* start_page_view_;
   CustomLauncherPageView* custom_page_view_;
 
-  // Unowned pointer to the container of the search answer web view. This
-  // container view is a sub-view of search_results_page_view_.
-  View* search_answer_container_view_;
-
   // The child page views. Owned by the views hierarchy.
   std::vector<AppListPage*> app_list_pages_;