Make automation proxy objects to ref_counted. That allows to process async no...

chrome/test/startup/feature_startup_test.cc

 // Copyright (c) 2006-2008 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 "base/file_util.h"
 #include "base/path_service.h"
 #include "base/perftimer.h"
 #include "base/time.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 41 matching lines @@
   void RunStartupTest(const char* label, bool want_warm, bool important) {
     // Install the location of the test profile file.
     set_template_user_data(ComputeTypicalUserDataSource().ToWStringHack());
 
     TimeDelta timings[kNumCycles];
     for (int i = 0; i < kNumCycles; ++i) {
       UITest::SetUp();
 
       // Switch to the "new tab" tab, which should be any new tab after the
       // first (the first is about:blank).
-      BrowserProxy* window = automation()->GetBrowserWindow(0);
-      ASSERT_TRUE(window);
+      scoped_refptr<BrowserProxy> window(automation()->GetBrowserWindow(0));
+      ASSERT_TRUE(window.get());
       int tab_count = -1;
       ASSERT_TRUE(window->GetTabCount(&tab_count));
       ASSERT_EQ(1, tab_count);
 
       // Hit ctl-t and wait for the tab to load.
       window->ApplyAccelerator(IDC_NEW_TAB);
       ASSERT_TRUE(window->WaitForTabCountToBecome(2, 5000));
       int load_time;
       ASSERT_TRUE(automation()->WaitForInitialNewTabUILoad(&load_time));
       timings[i] = TimeDelta::FromMilliseconds(load_time);
 
       if (want_warm) {
         // Bring up a second tab, now that we've already shown one tab.
         window->ApplyAccelerator(IDC_NEW_TAB);
         ASSERT_TRUE(window->WaitForTabCountToBecome(3, 5000));
         ASSERT_TRUE(automation()->WaitForInitialNewTabUILoad(&load_time));
         timings[i] = TimeDelta::FromMilliseconds(load_time);
       }
 
-      delete window;
+      window = NULL;
       UITest::TearDown();
     }
 
     PrintTimings(label, timings, important);
   }
 };
 
 // TODO(pamg): run these tests with a reference build?
 TEST_F(NewTabUIStartupTest, PerfCold) {
   RunStartupTest("tab_cold", false /* cold */, true /* important */);
 }
 
 TEST_F(NewTabUIStartupTest, DISABLED_PerfWarm) {
   RunStartupTest("tab_warm", true /* warm */, false /* not important */);
 }
 
 }  // namespace