[Cleanup] Remove StringPrintf from global namespace

google_apis/gaia/oauth2_api_call_flow.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 "google_apis/gaia/oauth2_api_call_flow.h"
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 10 matching lines @@
 using net::URLFetcher;
 using net::URLFetcherDelegate;
 using net::URLRequestContextGetter;
 using net::URLRequestStatus;
 
 namespace {
 static const char kAuthorizationHeaderFormat[] =
     "Authorization: Bearer %s";
 
 static std::string MakeAuthorizationHeader(const std::string& auth_token) {
-  return StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
+  return base::StringPrintf(kAuthorizationHeaderFormat, auth_token.c_str());
 }
 }  // namespace
 
 OAuth2ApiCallFlow::OAuth2ApiCallFlow(
     net::URLRequestContextGetter* context,
     const std::string& refresh_token,
     const std::string& access_token,
     const std::vector<std::string>& scopes)
     : context_(context),
       refresh_token_(refresh_token),
@@ skipping 121 matching lines @@
   // especially at startup and after sign-in on ChromeOS. Retrying once should
   // be enough in those cases; let the fetcher retry up to 3 times just in case.
   // http://crbug.com/163710
   result->SetAutomaticallyRetryOnNetworkChanges(3);
 
   if (!empty_body)
     result->SetUploadData("application/x-www-form-urlencoded", body);
 
   return result;
 }