[ash-md] Makes Wi-Fi header row sticky when network list is scrolled

ash/common/system/chromeos/network/network_list_view_base.h

Index: ash/common/system/chromeos/network/network_list_view_base.h
diff --git a/ash/common/system/chromeos/network/network_list_view_base.h b/ash/common/system/chromeos/network/network_list_view_base.h
index c0db970b63ee67748a0894a03757db4c80d8985f..232c12f62f4a2a2e811bbc98dc4597077b140f48 100644
--- a/ash/common/system/chromeos/network/network_list_view_base.h
+++ b/ash/common/system/chromeos/network/network_list_view_base.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "ash/common/system/tray/header_list_scroll_view.h"
 #include "base/macros.h"
 
 namespace views {
@@ -22,7 +23,9 @@ class NetworkListViewBase {
   NetworkListViewBase();
   virtual ~NetworkListViewBase();
 
-  void set_container(views::View* container) { container_ = container; }
+  void set_container(HeaderListScrollView* container) {
+    container_ = container;
+  }
 
   // Refreshes the network list.
   virtual void Update() = 0;
@@ -34,11 +37,11 @@ class NetworkListViewBase {
                               std::string* service_path) const = 0;
 
  protected:
-  views::View* container() { return container_; }
+  HeaderListScrollView* container() { return container_; }
 
  private:
   // The container that holds the actual list entries.
-  views::View* container_ = nullptr;
+  HeaderListScrollView* container_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkListViewBase);
 };