mac: Flush the autorelease pool after making a browser window in browser tests.

chrome/browser/apps/app_browsertest.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 "apps/launcher.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/prefs/pref_service.h"
@@ skipping 794 matching lines @@
     const char* name, int test_flags) {
   using content::DevToolsAgentHost;
   const Extension* extension = LoadAndLaunchPlatformApp(name, "Launched");
   ASSERT_TRUE(extension);
   AppWindow* window = GetFirstAppWindow();
   ASSERT_TRUE(window);
   ASSERT_EQ(window->window_key().empty(), (test_flags & HAS_ID) == 0);
   content::WebContents* web_contents = window->web_contents();
   ASSERT_TRUE(web_contents);
 
-  // Ensure no DevTools open for the AppWindow, then open one.
-  ASSERT_FALSE(DevToolsAgentHost::HasFor(web_contents));
-  DevToolsWindow::OpenDevToolsWindow(web_contents);
-  ASSERT_TRUE(DevToolsAgentHost::HasFor(web_contents));
+  OpenDevToolsWindow(web_contents);
 
   if (test_flags & RELAUNCH) {
     // Close the AppWindow, and ensure it is gone.
     CloseAppWindow(window);
     ASSERT_FALSE(GetFirstAppWindow());
 
     // Relaunch the app and get a new AppWindow.
     content::WindowedNotificationObserver app_loaded_observer(
         content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
         content::NotificationService::AllSources());
@@ skipping 508 matching lines @@
   // Now check that the app window's default zoom, and actual zoom level,
   // have not been changed from the default.
   WebContents* web_contents = GetFirstAppWindowWebContents();
   content::HostZoomMap* app_host_zoom_map = content::HostZoomMap::Get(
       web_contents->GetSiteInstance());
   EXPECT_EQ(0, app_host_zoom_map->GetDefaultZoomLevel());
   EXPECT_EQ(0, app_host_zoom_map->GetZoomLevel(web_contents));
 }
 
 }  // namespace extensions