webkit: Append base:: in the StringPrintf calls.

webkit/tools/test_shell/mock_spellcheck_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 "base/format_macros.h"
 #include "base/string_util.h"
+#include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webkit/tools/test_shell/mock_spellcheck.h"
 
 class MockSpellCheckTest : public testing::Test {
  public:
   MockSpellCheckTest() {
   }
 
   ~MockSpellCheckTest() {
@@ skipping 39 matching lines @@
     {L" " L"ifmmp", false, 1, 5},
     {L"ifmmp" L" ", false, 0, 5},
     {L"ifmmp" L" " L"ifmmp", false, 0, 5},
 
     {L"qwertyuiopasd", false, 0, 13},
     {L"qwertyuiopasdf", false, 0, 14},
   };
 
   MockSpellCheck spellchecker;
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestCases); ++i) {
-    SCOPED_TRACE(StringPrintf("kTestCases[%" PRIuS "]", i));
+    SCOPED_TRACE(base::StringPrintf("kTestCases[%" PRIuS "]", i));
 
     std::wstring input(kTestCases[i].input);
     int misspelling_start;
     int misspelling_length;
     bool result = spellchecker.SpellCheckWord(WideToUTF16(input),
                                               &misspelling_start,
                                               &misspelling_length);
 
     EXPECT_EQ(kTestCases[i].expected_result, result);
     EXPECT_EQ(kTestCases[i].misspelling_start, misspelling_start);
     EXPECT_EQ(kTestCases[i].misspelling_length, misspelling_length);
   }
 }