Do not show shelf or top chrome hints while in Ash immersive mode

ash/common/shelf/shelf_layout_manager.cc

 // Copyright (c) 2012 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.
 
 #include "ash/common/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <vector>
 
@@ skipping 1001 matching lines @@
 }
 
 float ShelfLayoutManager::ComputeTargetOpacity(const State& state) {
   if (gesture_drag_status_ == GESTURE_DRAG_IN_PROGRESS ||
       state.visibility_state == SHELF_VISIBLE) {
     return 1.0f;
   }
   // In Chrome OS Material Design, when shelf is hidden during auto hide state,
   // target bounds are also hidden. So the window can extend to the edge of
   // screen.
-  if (ash::MaterialDesignController::IsShelfMaterial() ||
+  if (ash::MaterialDesignController::IsImmersiveModeMaterial() ||
       invisible_auto_hide_shelf_) {
     return (state.visibility_state == SHELF_AUTO_HIDE &&
             state.auto_hide_state == SHELF_AUTO_HIDE_SHOWN)
                ? 1.0f
                : 0.0f;
   }
   return (state.visibility_state == SHELF_AUTO_HIDE) ? 1.0f : 0.0f;
 }
 
 ash::wm::WindowState::FullscreenShelfMode
@@ skipping 105 matching lines @@
   gesture_drag_status_ = GESTURE_DRAG_NONE;
 }
 
 int ShelfLayoutManager::GetShelfInsetsForAutoHide() const {
   if (invisible_auto_hide_shelf_)
     return 0;
   return GetShelfConstant(SHELF_INSETS_FOR_AUTO_HIDE);
 }
 
 }  // namespace ash