Allow scroll events to open custom launcher pages.

ui/app_list/views/app_list_main_view.h

Index: ui/app_list/views/app_list_main_view.h
diff --git a/ui/app_list/views/app_list_main_view.h b/ui/app_list/views/app_list_main_view.h
index 971bb8354d1f2088a9d64f653fd9279bc3f56518..be70a96d5744d0fe461945c62c2bedcd954aa1c6 100644
--- a/ui/app_list/views/app_list_main_view.h
+++ b/ui/app_list/views/app_list_main_view.h
@@ -58,11 +58,6 @@ class APP_LIST_EXPORT AppListMainView : public views::View,
 
   SearchBoxView* search_box_view() const { return search_box_view_; }
 
-  // Gets the invisible widget that sits partly over the bottom of the app list,
-  // covering the collapsed-state custom page. May return nullptr, if the widget
-  // has not been initialized or has already been destroyed.
-  views::Widget* GetCustomPageClickzone() const;
-
   // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
   // operations outside the application list.
   void SetDragAndDropHostOfCurrentAppList(
@@ -78,9 +73,6 @@ class APP_LIST_EXPORT AppListMainView : public views::View,
   // Called when the search box's visibility is changed.
   void NotifySearchBoxVisibilityChanged();
 
-  // Initialize widgets that live inside the app list's main widget.
-  void InitWidgets();
-
   // Overridden from AppListModelObserver:
   void OnCustomLauncherPageEnabledStateChanged(bool enabled) override;
 
@@ -124,11 +116,6 @@ class APP_LIST_EXPORT AppListMainView : public views::View,
   SearchBoxView* search_box_view_;
   ContentsView* contents_view_;  // Owned by views hierarchy.
 
-  // Invisible widget that sits partly over the bottom of the app list, covering
-  // the collapsed-state custom page, and intercepts click events. Always use
-  // GetCustomPageClickzone() to access this (do not access it directly).
-  views::Widget* custom_page_clickzone_;  // Owned by the app list widget.
-
   // A timer that fires when maximum allowed time to wait for icon loading has
   // passed.
   base::OneShotTimer<AppListMainView> icon_loading_wait_timer_;