Fix unit test style in Source/platform/, part 2.

Source/platform/text/LocaleMacTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "platform/DateComponents.h"
 #include "platform/TestingPlatformSupport.h"
 #include "public/platform/Platform.h"
 #include "wtf/DateMath.h"
 #include "wtf/MathExtras.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/CString.h"
 #include <gtest/gtest.h>
 
-using namespace blink;
+namespace blink {
 
 class LocalePlatformSupport : public TestingPlatformSupport {
 public:
     LocalePlatformSupport() : TestingPlatformSupport(TestingPlatformSupport::Config()) { }
 
     WebString queryLocalizedString(WebLocalizedString::Name /*name*/) override
     {
         return WebString::fromUTF8("Week $2, $1");
     }
 };
@@ skipping 343 matching lines @@
     testNumbers("ar");
     testNumbers("de_DE");
     testNumbers("es_ES");
     testNumbers("fa");
     testNumbers("ja_JP");
     testNumbers("ko_KR");
     testNumbers("zh_CN");
     testNumbers("zh_HK");
     testNumbers("zh_TW");
 }
+
+} // namespace blink