[Cleanup] Remove StringPrintf from global namespace

chrome/browser/extensions/webstore_startup_installer_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 "base/command_line.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_install_ui.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 64 matching lines @@
     GURL page_url = test_server()->GetURL(
         "files/extensions/api_test/webstore_inline_install/" + page_filename);
 
     GURL::Replacements replace_host;
     replace_host.SetHostStr(domain);
     return page_url.ReplaceComponents(replace_host);
   }
 
   void RunTest(const std::string& test_function_name) {
     bool result = false;
-    std::string script = StringPrintf("%s('%s')", test_function_name.c_str(),
+    std::string script = base::StringPrintf(
+        "%s('%s')", test_function_name.c_str(),
         test_gallery_url_.c_str());
     ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
         browser()->tab_strip_model()->GetActiveWebContents(),
         script,
         &result));
     EXPECT_TRUE(result);
   }
 
   // Passes |i| to |test_function_name|, and expects that function to
   // return one of "FAILED", "KEEPGOING" or "DONE". KEEPGOING should be
   // returned if more tests remain to be run and the current test succeeded,
   // FAILED is returned when a test fails, and DONE is returned by the last
   // test if it succeeds.
   // This methods returns true iff there are more tests that need to be run.
   bool RunIndexedTest(const std::string& test_function_name,
                       int i) {
     std::string result = "FAILED";
-    std::string script = StringPrintf("%s('%s', %d)",
+    std::string script = base::StringPrintf("%s('%s', %d)",
         test_function_name.c_str(), test_gallery_url_.c_str(), i);
     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
         browser()->tab_strip_model()->GetActiveWebContents(),
         script,
         &result));
     EXPECT_TRUE(result != "FAILED");
     return result == "KEEPGOING";
   }
 
   std::string test_gallery_url_;
@@ skipping 254 matching lines @@
       switches::kLimitedInstallFromWebstore, "2");
   command_line->AppendSwitchASCII(
       switches::kAppsGalleryInstallAutoConfirmForTests, "cancel");
   extensions::StartupHelper helper;
   helper.LimitedInstallFromWebstore(*command_line, browser()->profile(),
       MessageLoop::QuitWhenIdleClosure());
   MessageLoop::current()->Run();
   EXPECT_FALSE(saw_install());
   EXPECT_EQ(0, browser_open_count());
 }