Removes BrowserFrame::TabStripDisplayModeChanged, its long dead.

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

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_H_
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "build/build_config.h"
@@ skipping 56 matching lines @@
 
   // Returns the amount that the theme background should be inset.
   int GetThemeBackgroundXInset() const;
 
   // Tells the frame to update the throbber.
   void UpdateThrobber(bool running);
 
   // Returns the NonClientFrameView of this frame.
   views::View* GetFrameView() const;
 
-  // Notifies the frame that the tab strip display mode changed so it can update
-  // its frame treatment if necessary.
-  void TabStripDisplayModeChanged();
-
   // Overridden from views::Widget:
   virtual views::internal::RootView* CreateRootView() OVERRIDE;
   virtual views::NonClientFrameView* CreateNonClientFrameView() OVERRIDE;
   virtual bool GetAccelerator(int command_id,
                               ui::Accelerator* accelerator) OVERRIDE;
   virtual ui::ThemeProvider* GetThemeProvider() const OVERRIDE;
   virtual void SchedulePaintInRect(const gfx::Rect& rect) OVERRIDE;
   virtual void OnNativeWidgetActivationChanged(bool active) OVERRIDE;
 
   // Overridden from views::ContextMenuController:
@@ skipping 38 matching lines @@
   // |theme_provider_|. Initially |theme_provider_| is set to the ThemeService
   // and |owned_theme_provider_| is NULL (as ThemeServices lifetime is managed
   // externally).
   scoped_ptr<ui::ThemeProvider> owned_theme_provider_;
   ui::ThemeProvider* theme_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserFrame);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_FRAME_H_