Pull shell window stuff out of ExtensionHost and put in ShellWindow

chrome/browser/ui/gtk/extensions/shell_window_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/extensions/shell_window_gtk.h"
 
-#include "chrome/browser/extensions/extension_host.h"
+#include "chrome/browser/extensions/platform_app_host.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "ui/base/x/active_window_watcher_x.h"
 #include "ui/gfx/rect.h"
 
-ShellWindowGtk::ShellWindowGtk(ExtensionHost* host)
+ShellWindowGtk::ShellWindowGtk(PlatformAppHost* host)
     : ShellWindow(host),
       state_(GDK_WINDOW_STATE_WITHDRAWN),
       is_active_(!ui::ActiveWindowWatcherX::WMSupportsActivation()) {
   host_->view()->SetContainer(this);
   window_ = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
 
   gtk_container_add(GTK_CONTAINER(window_), host_->view()->native_view());
 
   const Extension* extension = host_->extension();
 
@@ skipping 155 matching lines @@
   return FALSE;
 }
 
 gboolean ShellWindowGtk::OnWindowState(GtkWidget* sender,
                                        GdkEventWindowState* event) {
   state_ = event->new_window_state;
   return FALSE;
 }
 
 // static
-ShellWindow* ShellWindow::CreateShellWindow(ExtensionHost* host) {
+ShellWindow* ShellWindow::CreateShellWindow(PlatformAppHost* host) {
   return new ShellWindowGtk(host);
 }