[Cleanup] Remove StringPrintf from global namespace

chrome/browser/ssl/ssl_browser_tests.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 "base/command_line.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_service.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/time.h"
@@ skipping 558 matching lines @@
 IN_PROC_BROWSER_TEST_F(SSLUITest, MAYBE_TestWSSInvalidCertAndClose) {
   ASSERT_TRUE(test_server()->Start());
   ASSERT_TRUE(wss_server_expired_.Start());
 
   // Setup page title observer.
   WebContents* tab = browser()->tab_strip_model()->GetActiveWebContents();
   content::TitleWatcher watcher(tab, ASCIIToUTF16("PASS"));
   watcher.AlsoWaitForTitle(ASCIIToUTF16("FAIL"));
 
   // Create GURLs to test pages.
-  std::string masterUrlPath = StringPrintf("%s?%d",
+  std::string masterUrlPath = base::StringPrintf("%s?%d",
       test_server()->GetURL("files/ssl/wss_close.html").spec().c_str(),
       wss_server_expired_.host_port_pair().port());
   GURL masterUrl(masterUrlPath);
-  std::string slaveUrlPath = StringPrintf("%s?%d",
+  std::string slaveUrlPath = base::StringPrintf("%s?%d",
       test_server()->GetURL("files/ssl/wss_close_slave.html").spec().c_str(),
       wss_server_expired_.host_port_pair().port());
   GURL slaveUrl(slaveUrlPath);
 
   // Create tabs and visit pages which keep on creating wss connections.
   WebContents* tabs[16];
   for (int i = 0; i < 16; ++i) {
     tabs[i] = chrome::AddSelectedTabWithURL(browser(), slaveUrl,
                                             content::PAGE_TRANSITION_LINK);
   }
@@ skipping 1035 matching lines @@
 
 // Visit a page over https that contains a frame with a redirect.
 
 // XMLHttpRequest insecure content in synchronous mode.
 
 // XMLHttpRequest insecure content in asynchronous mode.
 
 // XMLHttpRequest over bad ssl in synchronous mode.
 
 // XMLHttpRequest over OK ssl in synchronous mode.