Move TabStripModelDelegate off Browser into its own class.

chrome/browser/ui/gtk/tabs/dragged_tab_controller_gtk.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 "chrome/browser/ui/gtk/tabs/dragged_tab_controller_gtk.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/i18n/rtl.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/ui/app_modal_dialogs/javascript_dialog_creator.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/gtk/browser_window_gtk.h"
 #include "chrome/browser/ui/gtk/gtk_util.h"
 #include "chrome/browser/ui/gtk/tabs/dragged_view_gtk.h"
 #include "chrome/browser/ui/gtk/tabs/tab_strip_gtk.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/tabs/tab_strip_model_delegate.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/base/gtk/gtk_screen_util.h"
 #include "ui/gfx/screen.h"
 
 using content::OpenURLParams;
 using content::WebContents;
 
 namespace {
@@ skipping 852 matching lines @@
 
 bool DraggedTabControllerGtk::AreTabsConsecutive() {
   for (size_t i = 1; i < drag_data_->size(); ++i) {
     if (drag_data_->get(i - 1)->source_model_index_ + 1 !=
         drag_data_->get(i)->source_model_index_) {
       return false;
     }
   }
   return true;
 }