Adding a command line flag to specify renderer process limit

chrome/browser/ui/webui/ntp/new_tab_ui_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 "chrome/browser/ui/browser.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
@@ skipping 22 matching lines @@
       browser()->GetWebContentsAt(0)->GetRenderViewHost(), L"",
       L"window.domAutomationController.send(document.body.innerHTML == '')",
       &empty_inner_html));
   ASSERT_FALSE(empty_inner_html);
 }
 
 // Ensure loading a NTP with an existing SiteInstance in a reused process
 // doesn't cause us to kill the process.  See http://crbug.com/104258.
 IN_PROC_BROWSER_TEST_F(NewTabUIBrowserTest, LoadNTPInExistingProcess) {
   // Set max renderers to 1 to force running out of processes.
-  content::RenderProcessHost::SetMaxRendererProcessCountForTest(1);
+  content::RenderProcessHost::SetMaxRendererProcessCount(1);
 
   // Start server for simple page.
   ASSERT_TRUE(test_server()->Start());
 
   // Load a NTP in a new tab.
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), GURL(chrome::kChromeUINewTabURL), NEW_FOREGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   EXPECT_EQ(1, browser()->GetWebContentsAt(1)->GetMaxPageID());
 
@@ skipping 31 matching lines @@
       browser(), GURL(chrome::kChromeUINewTabURL), NEW_FOREGROUND_TAB,
       ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   EXPECT_EQ(1, browser()->GetWebContentsAt(3)->GetMaxPageID());
 
   // Only navigating to the NTP in the original tab should have a higher
   // page ID.
   browser()->ActivateTabAt(1, true);
   ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
   EXPECT_EQ(2, browser()->GetWebContentsAt(1)->GetMaxPageID());
 }