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

chrome/browser/ui/views/frame/immersive_mode_controller.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/observer_list.h"
@@ skipping 56 matching lines @@
   explicit ImmersiveModeController(Type type);
   virtual ~ImmersiveModeController();
 
   // Must initialize after browser view has a Widget and native window.
   virtual void Init(BrowserView* browser_view) = 0;
 
   // Enables or disables immersive mode.
   virtual void SetEnabled(bool enabled) = 0;
   virtual bool IsEnabled() const = 0;
 
-  // True if the miniature "tab indicators" should be hidden in the main browser
-  // view when immersive mode is enabled.
-  virtual bool ShouldHideTabIndicators() const = 0;
-
   // True when the top views are hidden due to immersive mode.
   virtual bool ShouldHideTopViews() const = 0;
 
   // True when the top views are fully or partially visible.
   virtual bool IsRevealed() const = 0;
 
   // Returns the top container's vertical offset relative to its parent. When
   // revealing or closing the top-of-window views, part of the top container is
   // offscreen.
   // This method takes in the top container's size because it is called as part
@@ skipping 41 matching lines @@
 };
 
 namespace chrome {
 
 // Implemented in immersive_mode_controller_factory.cc.
 ImmersiveModeController* CreateImmersiveModeController();
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_IMMERSIVE_MODE_CONTROLLER_H_