iwyu: Include stringprintf.h where appropriate, part 1.

printing/printed_document.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 "printing/printed_document.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop.h"
+#include "base/stringprintf.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "base/i18n/time_formatting.h"
 #include "printing/page_number.h"
 #include "printing/page_overlays.h"
 #include "printing/printed_pages_source.h"
 #include "printing/printed_page.h"
 #include "printing/units.h"
 #include "skia/ext/platform_device.h"
 #include "ui/base/text/text_elider.h"
@@ skipping 275 matching lines @@
       name_(source->RenderSourceName()),
       url_(source->RenderSourceUrl()),
       cookie_(cookie) {
   SetDocumentDate();
 }
 
 PrintedDocument::Immutable::~Immutable() {
 }
 
 }  // namespace printing