Remove unused code for the metro window switcher button

chrome/browser/ui/views/frame/opaque_browser_frame_view_layout.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/opaque_browser_frame_view_layout.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/profiles/profiles_state.h"
 #include "chrome/browser/ui/views/profiles/avatar_label.h"
 #include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
@@ skipping 119 matching lines @@
   leading_buttons_ = leading_buttons;
   trailing_buttons_ = trailing_buttons;
 }
 
 gfx::Rect OpaqueBrowserFrameViewLayout::GetBoundsForTabStrip(
     const gfx::Size& tabstrip_preferred_size,
     int available_width) const {
   available_width -= trailing_button_start_;
   available_width -= leading_button_start_;
 
-  if (delegate_->GetAdditionalReservedSpaceInTabStrip())
-    available_width -= delegate_->GetAdditionalReservedSpaceInTabStrip();
-
   const int caption_spacing = NewTabCaptionSpacing();
   const int tabstrip_width = available_width - caption_spacing;
   gfx::Rect bounds(leading_button_start_, GetTabStripInsetsTop(false),
                    std::max(0, tabstrip_width),
                    tabstrip_preferred_size.height());
 
   int leading_tabstrip_indent = kTabStripIndent;
   if (delegate_->ShouldShowAvatar() && !ShouldAvatarBeOnRight()) {
     if (avatar_label_ && avatar_label_->bounds().width())
       leading_tabstrip_indent += kAvatarLabelInnerSpacing;
@@ skipping 531 matching lines @@
 
 void OpaqueBrowserFrameViewLayout::ViewAdded(views::View* host,
                                              views::View* view) {
   SetView(view->id(), view);
 }
 
 void OpaqueBrowserFrameViewLayout::ViewRemoved(views::View* host,
                                                views::View* view) {
   SetView(view->id(), NULL);
 }