iwyu: Include stringprintf.h where appropriate, part 2.

chrome/browser/ui/webui/gpu_internals_ui.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 "chrome/browser/ui/webui/gpu_internals_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/scoped_ptr.h"
+#include "base/stringprintf.h"
 #include "base/string_number_conversions.h"
 #include "base/string_piece.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/connection_tester.h"
 #include "chrome/browser/net/passive_log_collector.h"
 #include "chrome/browser/net/url_fixer_upper.h"
@@ skipping 613 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 
 GpuInternalsUI::GpuInternalsUI(TabContents* contents) : WebUI(contents) {
   AddMessageHandler((new GpuMessageHandler())->Attach(this));
 
   GpuHTMLSource* html_source = new GpuHTMLSource();
 
   // Set up the chrome://gpu/ source.
   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 }