Fix unit test style in Source/web/.

Source/web/tests/OpenTypeVerticalDataTest.cpp

 /*
  * Copyright (C) 2012 Koji Ishii <kojiishi@gmail.com>
  *
  * 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 11 matching lines @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "platform/SharedBuffer.h"
 #include "platform/fonts/opentype/OpenTypeTypes.h"
 #include "wtf/RefPtr.h"
 #include <gtest/gtest.h>
 
-using namespace blink;
-
-namespace {
+namespace blink {
 
 struct TestTable : OpenType::TableBase {
     OpenType::Fixed version;
     OpenType::Int16 ascender;
 
     template <typename T> const T* validateOffset(const SharedBuffer& buffer, uint16_t offset) const
     {
         return TableBase::validateOffset<T>(buffer, offset);
     }
 };
@@ skipping 27 matching lines @@
         EXPECT_TRUE(table->validateOffset<uint8_t>(*buffer, offset));
     EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable)));
     EXPECT_FALSE(table->validateOffset<uint8_t>(*buffer, sizeof(TestTable) + 1));
 
     // For uint16_t, the last byte is invalid
     for (uint16_t offset = 0; offset < sizeof(TestTable) - 1; offset++)
         EXPECT_TRUE(table->validateOffset<uint16_t>(*buffer, offset));
     EXPECT_FALSE(table->validateOffset<uint16_t>(*buffer, sizeof(TestTable) - 1));
 }
 
-} // namespace
+} // namespace blink