Don't use browser windows for platform app shell windows

chrome/browser/ui/browser_browsertest.cc

 // Copyright (c) 2011 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 <string>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #if defined(OS_MACOSX)
@@ skipping 1075 matching lines @@
   EXPECT_NE(app_name.find(extension_app->id()), std::string::npos)
       << "Name " << app_name << " should contain id "<< extension_app->id();
 }
 #endif  // !defined(OS_MACOSX)
 
 // Makes sure the browser doesn't crash when
 // set_show_state(ui::SHOW_STATE_MAXIMIZED) has been invoked.
 IN_PROC_BROWSER_TEST_F(BrowserTest, StartMaximized) {
   // Can't test TYPE_PANEL as they are currently created differently (and can't
   // end up maximized).
-  Browser::Type types[] =
-      { Browser::TYPE_TABBED, Browser::TYPE_POPUP, Browser::TYPE_SHELL };
+  Browser::Type types[] = { Browser::TYPE_TABBED, Browser::TYPE_POPUP };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(types); ++i) {
     Browser* max_browser = new Browser(types[i], browser()->profile());
     max_browser->set_show_state(ui::SHOW_STATE_MAXIMIZED);
     max_browser->InitBrowserWindow();
     AddBlankTabAndShow(max_browser);
   }
 }
 
 // Aura doesn't support minimized window. crbug.com/104571.
 #if defined(USE_AURA)
 #define MAYBE_StartMinimized DISABLED_StartMinimized
 #else
 #define MAYBE_StartMinimized StartMinimized
 #endif
 // Makes sure the browser doesn't crash when
 // set_show_state(ui::SHOW_STATE_MINIMIZED) has been invoked.
 IN_PROC_BROWSER_TEST_F(BrowserTest, MAYBE_StartMinimized) {
   // Can't test TYPE_PANEL as they are currently created differently (and can't
   // end up minimized).
-  Browser::Type types[] =
-      { Browser::TYPE_TABBED, Browser::TYPE_POPUP, Browser::TYPE_SHELL };
+  Browser::Type types[] = { Browser::TYPE_TABBED, Browser::TYPE_POPUP };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(types); ++i) {
     Browser* min_browser = new Browser(types[i], browser()->profile());
     min_browser->set_show_state(ui::SHOW_STATE_MINIMIZED);
     min_browser->InitBrowserWindow();
     AddBlankTabAndShow(min_browser);
   }
 }
 
 // Makes sure the forward button is disabled immediately when navigating
 // forward to a slow-to-commit page.
@@ skipping 264 matching lines @@
 
   // The normal browser should now have four.
   EXPECT_EQ(4, browser()->tab_count());
 
   // Close the additional browsers.
   popup_browser->CloseAllTabs();
   app_browser->CloseAllTabs();
   app_popup_browser->CloseAllTabs();
 }
 #endif