Move UTF16ToASCII, remove WideToASCII.

content/test/image_decoder_test.cc

Index: content/test/image_decoder_test.cc
diff --git a/content/test/image_decoder_test.cc b/content/test/image_decoder_test.cc
index 00341c07670ed1d2e442b78960f60075170b5e8d..7d89e18bbc73c524c40cc4fb0340ceccb4b80ee3 100644
--- a/content/test/image_decoder_test.cc
+++ b/content/test/image_decoder_test.cc
@@ -11,6 +11,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
+#include "base/strings/utf_string_conversions.h"
 #include "third_party/WebKit/public/platform/WebData.h"
 #include "third_party/WebKit/public/platform/WebImage.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
@@ -131,7 +132,7 @@ std::vector<base::FilePath> ImageDecoderTest::GetImageFiles() const {
   while (!(next_file_name = enumerator.Next()).empty()) {
     base::FilePath base_name = next_file_name.BaseName();
 #if defined(OS_WIN)
-    std::string base_name_ascii = WideToASCII(base_name.value());
+    std::string base_name_ascii = base::UTF16ToASCII(base_name.value());
 #else
     std::string base_name_ascii = base_name.value();
 #endif