(Try 2) Update chrome://newtab checks in browser tests to use chrome::IsNTPURL().

chrome/browser/policy/policy_browsertest.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 <algorithm>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 1601 matching lines @@
   UpdateProviderPolicy(policies);
   EXPECT_TRUE(chrome::ExecuteCommand(browser(), IDC_HOME));
   content::WaitForLoadStop(contents);
   EXPECT_EQ(GURL(chrome::kChromeUICreditsURL), contents->GetURL());
 
   policies.Set(key::kHomepageIsNewTabPage, POLICY_LEVEL_MANDATORY,
                POLICY_SCOPE_USER, base::Value::CreateBooleanValue(true), NULL);
   UpdateProviderPolicy(policies);
   EXPECT_TRUE(chrome::ExecuteCommand(browser(), IDC_HOME));
   content::WaitForLoadStop(contents);
-  EXPECT_EQ(GURL(chrome::kChromeUINewTabURL), contents->GetURL());
+  EXPECT_TRUE(chrome::IsNTPURL(contents->GetURL(),browser()->profile()));
 }
 
 IN_PROC_BROWSER_TEST_F(PolicyTest, IncognitoEnabled) {
   // Verifies that incognito windows can't be opened when disabled by policy.
 
   const BrowserList* active_browser_list =
       BrowserList::GetInstance(chrome::GetActiveDesktop());
 
   // Disable incognito via policy and verify that incognito windows can't be
   // opened.
@@ skipping 973 matching lines @@
       chrome_variations::VariationsService::GetVariationsServerURL(
           g_browser_process->local_state());
   EXPECT_TRUE(StartsWithASCII(url.spec(), default_variations_url, true));
   std::string value;
   EXPECT_TRUE(net::GetValueForKeyInQuery(url, "restrict", &value));
   EXPECT_EQ("restricted", value);
 }
 #endif
 
 }  // namespace policy