base: Fix the TODO in string_util.h

skia/ext/vector_canvas_unittest.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 "build/build_config.h"
 
 #if !defined(OS_WIN)
 #include <unistd.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
+#include "base/stringprintf.h"
 #include "base/utf_string_conversions.h"
 #include "skia/ext/vector_canvas.h"
 #include "skia/ext/vector_platform_device_emf_win.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/effects/SkDashPathEffect.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/size.h"
 
 namespace skia {
 
@@ skipping 369 matching lines @@
     pcanvas_ = new PlatformCanvas(size_, size_, false);
 
     // Clear white.
     vcanvas_->drawARGB(255, 255, 255, 255, SkXfermode::kSrc_Mode);
     pcanvas_->drawARGB(255, 255, 255, 255, SkXfermode::kSrc_Mode);
   }
 
   // Compares both canvas and returns the pixel difference in percentage between
   // both images. 0 on success and ]0, 100] on failure.
   double ProcessImage(const FilePath::StringType& filename) {
-    std::wstring number(StringPrintf(L"%02d_", number_++));
+    std::wstring number(base::StringPrintf(L"%02d_", number_++));
     double diff1 = parent::ProcessCanvas(*vcanvas_, number + L"vc_" + filename);
     double diff2 = parent::ProcessCanvas(*pcanvas_, number + L"pc_" + filename);
     if (!compare_canvas_)
       return std::max(diff1, diff2);
 
     Image image1(*vcanvas_);
     Image image2(*pcanvas_);
     double diff = image1.PercentageDifferent(image2);
     return std::max(std::max(diff1, diff2), diff);
   }
@@ skipping 555 matching lines @@
   {
     vcanvas_->rotate(67);
     pcanvas_->rotate(67);
     vcanvas_->drawBitmap(bitmap, 20, -50, NULL);
     pcanvas_->drawBitmap(bitmap, 20, -50, NULL);
     EXPECT_EQ(0., ProcessImage(FILE_PATH_LITERAL("rotate")));
   }
 }
 
 }  // namespace skia