[Cleanup] Remove StringPrintf from global namespace

google_apis/gaia/oauth2_access_token_fetcher.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_access_token_fetcher.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 170 matching lines @@
     const std::string& client_id,
     const std::string& client_secret,
     const std::string& refresh_token,
     const std::vector<std::string>& scopes) {
   std::string enc_client_id = net::EscapeUrlEncodedData(client_id, true);
   std::string enc_client_secret =
       net::EscapeUrlEncodedData(client_secret, true);
   std::string enc_refresh_token =
       net::EscapeUrlEncodedData(refresh_token, true);
   if (scopes.empty()) {
-    return StringPrintf(
+    return base::StringPrintf(
         kGetAccessTokenBodyFormat,
         enc_client_id.c_str(),
         enc_client_secret.c_str(),
         enc_refresh_token.c_str());
   } else {
     std::string scopes_string = JoinString(scopes, ' ');
-    return StringPrintf(
+    return base::StringPrintf(
         kGetAccessTokenBodyWithScopeFormat,
         enc_client_id.c_str(),
         enc_client_secret.c_str(),
         enc_refresh_token.c_str(),
         net::EscapeUrlEncodedData(scopes_string, true).c_str());
   }
 }
 
 // static
 bool OAuth2AccessTokenFetcher::ParseGetAccessTokenResponse(
     const net::URLFetcher* source,
     std::string* access_token,
     int* expires_in) {
   CHECK(source);
   CHECK(access_token);
   std::string data;
   source->GetResponseAsString(&data);
   scoped_ptr<base::Value> value(base::JSONReader::Read(data));
   if (!value.get() || value->GetType() != base::Value::TYPE_DICTIONARY)
     return false;
 
   DictionaryValue* dict = static_cast<DictionaryValue*>(value.get());
   return dict->GetString(kAccessTokenKey, access_token) &&
       dict->GetInteger(kExpiresInKey, expires_in);
 }