[Cleanup] Remove StringPrintf from global namespace

content/browser/geolocation/wifi_data_provider_chromeos_unittest.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 "base/message_loop.h"
 #include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/shill_manager_client.h"
 #include "chromeos/network/geolocation_handler.h"
@@ skipping 28 matching lines @@
     return provider_->GetAccessPointData(&ap_data_);
   }
 
   void AddAccessPoints(int ssids, int aps_per_ssid) {
     for (int i = 0; i < ssids; ++i) {
       for (int j = 0; j < aps_per_ssid; ++j) {
         base::DictionaryValue properties;
         std::string mac_address =
             base::StringPrintf("%02X:%02X:%02X:%02X:%02X:%02X",
                                i, j, 3, 4, 5, 6);
-        std::string channel = StringPrintf("%d", i * 10 + j);
-        std::string strength = StringPrintf("%d", i * 100 + j);
+        std::string channel = base::StringPrintf("%d", i * 10 + j);
+        std::string strength = base::StringPrintf("%d", i * 100 + j);
         properties.SetStringWithoutPathExpansion(
             shill::kGeoMacAddressProperty, mac_address);
         properties.SetStringWithoutPathExpansion(
             shill::kGeoChannelProperty, channel);
         properties.SetStringWithoutPathExpansion(
             shill::kGeoSignalStrengthProperty, strength);
         manager_test_->AddGeoNetwork(flimflam::kTypeWifi, properties);
       }
     }
     message_loop_.RunUntilIdle();
@@ skipping 29 matching lines @@
 TEST_F(GeolocationChromeOsWifiDataProviderTest, GetManyAccessPoints) {
   message_loop_.RunUntilIdle();
   EXPECT_FALSE(GetAccessPointData());
 
   AddAccessPoints(3, 4);
   EXPECT_TRUE(GetAccessPointData());
   ASSERT_EQ(12u, ap_data_.size());
 }
 
 }  // namespace content