Update activity indicator from a light bar to a point

ash/material_design/material_design_controller.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_
 #define ASH_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_
 
 #include "ash/ash_export.h"
 #include "base/macros.h"
 
@@ skipping 23 matching lines @@
 
   // Returns true if Material Design is enabled in Chrome OS system UI.
   // Maps to "ash-md" flag "enabled" or "experimental" values.
   static bool IsMaterial();
 
   // Returns true if Material Design experimental features are enabled in
   // Chrome OS system UI.
   // Maps to "--ash-md=experimental" command line switch value.
   static bool IsMaterialExperimental();
 
+  // Returns true if Material Design features are enabled for Chrome OS shelf.
+  static bool IsShelfMaterial();
+
  private:
   friend class test::MaterialDesignControllerTestAPI;
 
   // Declarations only. Do not allow construction of an object.
   MaterialDesignController();
   ~MaterialDesignController();
 
   // Material Design |Mode| for Chrome OS system UI. Used by tests.
   static Mode mode();
 
   // Returns the per-platform default material design variant.
   static Mode DefaultMode();
 
   // Sets |mode_| to |mode|. Can be used by tests to directly set the mode.
   static void SetMode(Mode mode);
 
   // Resets the initialization state to uninitialized. To be used by tests to
   // allow calling Initialize() more than once.
   static void Uninitialize();
 
   DISALLOW_COPY_AND_ASSIGN(MaterialDesignController);
 };
 
 }  // namespace ash
 
 #endif  // ASH_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_