Fix leak.

chrome/browser/google/google_url_tracker_unittest.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 "chrome/browser/google/google_url_tracker.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_thread.h"
@@ skipping 277 matching lines @@
 
 void GoogleURLTrackerTest::CancelGoogleURL() {
   TestInfoBarDelegate* infobar = static_cast<TestInfoBarDelegate*>(
       g_browser_process->google_url_tracker()->infobar_);
   ASSERT_TRUE(infobar);
   ASSERT_TRUE(infobar->google_url_tracker());
   infobar->google_url_tracker()->CancelGoogleURL(infobar->new_google_url());
 }
 
 void GoogleURLTrackerTest::InfoBarClosed() {
-  TestInfoBarDelegate* infobar = static_cast<TestInfoBarDelegate*>(
-      g_browser_process->google_url_tracker()->infobar_);
+  InfoBarDelegate* infobar = g_browser_process->google_url_tracker()->infobar_;
   ASSERT_TRUE(infobar);
-  ASSERT_TRUE(infobar->google_url_tracker());
-  infobar->google_url_tracker()->InfoBarClosed();
-  delete g_browser_process->google_url_tracker()->infobar_;
+  GoogleURLTracker* url_tracker =
+      static_cast<TestInfoBarDelegate*>(infobar)->google_url_tracker();
+  ASSERT_TRUE(url_tracker);
+  url_tracker->InfoBarClosed();
+  delete infobar;
 }
 
 void GoogleURLTrackerTest::ExpectDefaultURLs() {
   EXPECT_EQ(GURL(GoogleURLTracker::kDefaultGoogleHomepage),
             GoogleURLTracker::GoogleURL());
   EXPECT_EQ(GURL(), GetFetchedGoogleURL());
 }
 
 
 // Tests ----------------------------------------------------------------------
@@ skipping 167 matching lines @@
   NavEntryCommitted();
   EXPECT_TRUE(InfoBarIsShown());
 
   AcceptGoogleURL();
   InfoBarClosed();
   EXPECT_FALSE(InfoBarIsShown());
   EXPECT_EQ(GURL("http://www.google.co.jp/"), GoogleURLTracker::GoogleURL());
   EXPECT_EQ(GURL("http://www.google.co.jp/"), GetLastPromptedGoogleURL());
   EXPECT_TRUE(observer_->notified());
 }