Cleanup namespace usage in modules/.

Source/modules/websockets/WebSocketPerMessageDeflateTest.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "modules/websockets/WebSocketPerMessageDeflate.h"
 
 #include "wtf/text/StringHash.h"
 
 #include <algorithm>
 #include <gtest/gtest.h>
 #include <iterator>
 
-using namespace blink;
-
+namespace blink {
 namespace {
 
 TEST(WebSocketPerMessageDeflateTest, TestDeflateHelloTakeOver)
 {
     WebSocketPerMessageDeflate c;
     c.enable(8, WebSocketDeflater::TakeOverContext);
     WebSocketFrame::OpCode opcode = WebSocketFrame::OpCodeText;
     WebSocketFrame f1(opcode, "Hello", 5, WebSocketFrame::Final);
     WebSocketFrame f2(opcode, "Hello", 5, WebSocketFrame::Final);
 
@@ skipping 449 matching lines @@
         params.add("server_max_window_bits", "08");
         EXPECT_FALSE(processResponse(params));
     }
 }
 
 TEST(WebSocketPerMessageDeflateTest, TestNegotiationRequest)
 {
     String actual = WebSocketPerMessageDeflate().createExtensionProcessor()->handshakeString();
     EXPECT_EQ(String("permessage-deflate; client_max_window_bits"), actual);
 }
+
 } // namespace
+} // namespace blink