iwyu: Include stringprintf.h where appropriate, part 3.

chrome/renderer/spellchecker/spellcheck_worditerator_unittest.cc

 // Copyright (c) 2010 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 <string>
 #include <vector>
 
 #include "base/format_macros.h"
+#include "base/stringprintf.h"
 #include "base/string_split.h"
-#include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/renderer/spellchecker/spellcheck_worditerator.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 struct TestCase {
     const char* language;
     bool allow_contraction;
     const wchar_t* expected_words;
@@ skipping 85 matching lines @@
       L"\x0e23\x0e31\x0e1a"
     }, {
       // Korean
       "ko-KR", true,
       L"\x110b\x1161\x11ab\x1102\x1167\x11bc\x1112\x1161"
       L"\x1109\x1166\x110b\x116d"
     },
   };
 
   for (size_t i = 0; i < arraysize(kTestCases); ++i) {
-    SCOPED_TRACE(StringPrintf("kTestCases[%" PRIuS "]: language=%s", i,
-                              kTestCases[i].language));
+    SCOPED_TRACE(base::StringPrintf("kTestCases[%" PRIuS "]: language=%s", i,
+                                    kTestCases[i].language));
 
     SpellcheckCharAttribute attributes;
     attributes.SetDefaultLanguage(kTestCases[i].language);
 
     string16 input(WideToUTF16(kTestText));
     SpellcheckWordIterator iterator;
     EXPECT_TRUE(iterator.Initialize(&attributes, input.c_str(), input.length(),
                                     kTestCases[i].allow_contraction));
 
     std::vector<string16> expected_words;
@@ skipping 28 matching lines @@
 
   // When SpellcheckWordIterator uses an inconsistent ICU ruleset, the following
   // iterator.GetNextWord() call gets stuck in an infinite loop. Therefore, this
   // test succeeds if this call returns without timeouts.
   string16 actual_word;
   int actual_start, actual_end;
   EXPECT_FALSE(iterator.GetNextWord(&actual_word, &actual_start, &actual_end));
   EXPECT_EQ(0, actual_start);
   EXPECT_EQ(0, actual_end);
 }