cros-md: Remove the non-MD immersive mode code paths

chrome/browser/ui/views/frame/immersive_mode_controller_ash_unittest.cc

 // Copyright 2013 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 "chrome/browser/ui/views/frame/immersive_mode_controller_ash.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/shelf/shelf_layout_manager.h"
 #include "ash/public/cpp/shelf_types.h"
 #include "ash/root_window_controller.h"
@@ skipping 120 matching lines @@
   EXPECT_TRUE(controller()->IsEnabled());
   EXPECT_FALSE(controller()->IsRevealed());
   EXPECT_FALSE(toolbar->visible());
   // For MD, the browser's top chrome is completely offscreen with tapstrip
   // visible.
   EXPECT_TRUE(tabstrip->visible());
   bool is_using_material_design =
       ash::MaterialDesignController::IsImmersiveModeMaterial();
   if (!is_using_material_design)
     EXPECT_TRUE(tabstrip->IsImmersiveStyle());
+  // Top container view should be completely offscreen.
+  EXPECT_EQ(0, GetBoundsInWidget(browser_view()->top_container()).bottom());
 
   // The tab indicators should be flush with the top of the widget.
   EXPECT_EQ(0, GetBoundsInWidget(tabstrip).y());
 
   // In MD, since the tab strip and tool bar are both hidden in immersive
   // fullscreen mode, the web contents should extend to the edge of screen. In
   // non-MD, the web contents should be immediately below the tab indicators.
   if (is_using_material_design) {
     EXPECT_EQ(0, GetBoundsInWidget(contents_web_view).y());
   } else {
@@ skipping 221 matching lines @@
 
   // Exit immersive fullscreen. The web contents should be back below the window
   // header.
   ToggleFullscreen();
   EXPECT_FALSE(browser_view()->GetWidget()->IsFullscreen());
   EXPECT_FALSE(controller()->IsEnabled());
   EXPECT_FALSE(tabstrip->visible());
   EXPECT_FALSE(toolbar->visible());
   EXPECT_EQ(header_height, GetBoundsInWidget(contents_web_view).y());
 }