When using the week-of-year syntax, don't construct an intermediate time value when formatting; use…

content/renderer/date_time_formatter.cc

Index: content/renderer/date_time_formatter.cc
diff --git a/content/renderer/date_time_formatter.cc b/content/renderer/date_time_formatter.cc
index 3b976b884e2d548a3e821ca456a7584dc148bb30..f9d02edff845015720043182637f51bc992eb03c 100644
--- a/content/renderer/date_time_formatter.cc
+++ b/content/renderer/date_time_formatter.cc
@@ -130,10 +130,9 @@ const std::string DateTimeFormatter::FormatString() const {
       calendar.set(UCAL_MINUTE, minute_);
       calendar.set(UCAL_SECOND, second_);
     }
-    UDate time = calendar.getTime(success);
     icu::SimpleDateFormat formatter(*pattern_, success);
     icu::UnicodeString formatted_time;
-    formatter.format(time, formatted_time, success);
+    formatter.format(calendar, formatted_time, NULL, success);
     UTF16ToUTF8(formatted_time.getBuffer(),
                 static_cast<size_t>(formatted_time.length()),
                 &result);