Fix unit test style in Source/wtf/.

Source/wtf/text/StringBufferTest.cpp

 /*
  * Copyright 2014 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 "config.h"
-
 #include "wtf/text/StringBuffer.h"
 
 #include <gtest/gtest.h>
 
-namespace {
+namespace WTF {
 
-
-TEST(StringBuffer, Initial)
+TEST(StringBufferTest, Initial)
 {
     StringBuffer<LChar> buf1;
     EXPECT_EQ(0u, buf1.length());
     EXPECT_FALSE(buf1.characters());
 
     StringBuffer<LChar> buf2(0);
     EXPECT_EQ(0u, buf2.length());
     EXPECT_FALSE(buf2.characters());
 
     StringBuffer<LChar> buf3(1);
     EXPECT_EQ(1u, buf3.length());
     EXPECT_TRUE(buf3.characters());
 }
 
-TEST(StringBuffer, shrink)
+TEST(StringBufferTest, shrink)
 {
     StringBuffer<LChar> buf(2);
     EXPECT_EQ(2u, buf.length());
     buf[0] = 'a';
     buf[1] = 'b';
 
     buf.shrink(1);
     EXPECT_EQ(1u, buf.length());
     EXPECT_EQ('a', buf[0]);
 
     buf.shrink(0);
     EXPECT_EQ(0u, buf.length());
 }
 
-} // namespace
+} // namespace WTF