[Cleanup] Remove StringPrintf from global namespace

ui/aura/test/test_window_delegate.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 "ui/aura/test/test_window_delegate.h"
 
 #include "base/stringprintf.h"
 #include "ui/aura/window.h"
 #include "ui/base/events/event.h"
 #include "ui/base/hit_test.h"
@@ skipping 164 matching lines @@
       break;
     case ui::ET_MOUSE_RELEASED:
       mouse_release_count_++;
       break;
     default:
       break;
   }
 }
 
 std::string EventCountDelegate::GetMouseMotionCountsAndReset() {
-  std::string result = StringPrintf("%d %d %d",
-                                    mouse_enter_count_,
-                                    mouse_move_count_,
-                                    mouse_leave_count_);
+  std::string result = base::StringPrintf("%d %d %d",
+                                          mouse_enter_count_,
+                                          mouse_move_count_,
+                                          mouse_leave_count_);
   mouse_enter_count_ = 0;
   mouse_move_count_ = 0;
   mouse_leave_count_ = 0;
   return result;
 }
 
 std::string EventCountDelegate::GetMouseButtonCountsAndReset() {
-  std::string result = StringPrintf("%d %d",
-                                    mouse_press_count_,
-                                    mouse_release_count_);
+  std::string result = base::StringPrintf("%d %d",
+                                          mouse_press_count_,
+                                          mouse_release_count_);
   mouse_press_count_ = 0;
   mouse_release_count_ = 0;
   return result;
 }
 
 
 std::string EventCountDelegate::GetKeyCountsAndReset() {
-  std::string result = StringPrintf("%d %d",
-                                    key_press_count_,
-                                    key_release_count_);
+  std::string result = base::StringPrintf("%d %d",
+                                          key_press_count_,
+                                          key_release_count_);
   key_press_count_ = 0;
   key_release_count_ = 0;
   return result;
 }
 
 }  // namespace test
 }  // namespace aura