[Cleanup] Remove StringPrintf from global namespace

chrome/browser/ui/ash/launcher/shell_window_launcher_controller.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 "chrome/browser/ui/ash/launcher/shell_window_launcher_controller.h"
 
 #include "ash/shell.h"
 #include "ash/wm/window_util.h"
 #include "base/stl_util.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 #include "chrome/browser/ui/ash/launcher/shell_window_launcher_item_controller.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "ui/aura/client/activation_client.h"
 
 namespace {
 
 std::string GetAppLauncherId(ShellWindow* shell_window) {
   if (shell_window->window_type_is_panel())
-    return StringPrintf("panel:%d", shell_window->session_id().id());
+    return base::StringPrintf("panel:%d", shell_window->session_id().id());
   return shell_window->extension()->id();
 }
 
 }  // namespace
 
 ShellWindowLauncherController::ShellWindowLauncherController(
     ChromeLauncherController* owner)
     : owner_(owner),
       registry_(extensions::ShellWindowRegistry::Get(owner->profile())),
       activation_client_(NULL) {
@@ skipping 134 matching lines @@
   WindowToAppLauncherIdMap::iterator iter1 =
       window_to_app_launcher_id_map_.find(window);
   if (iter1 == window_to_app_launcher_id_map_.end())
     return NULL;
   std::string app_launcher_id = iter1->second;
   AppControllerMap::iterator iter2 = app_controller_map_.find(app_launcher_id);
   if (iter2 == app_controller_map_.end())
     return NULL;
   return iter2->second;
 }