Removing using declarations that import names in the C++ Standard library.

Source/modules/websockets/WebSocketFrame.cpp

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
  * Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this program; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "config.h"
 
 #include "modules/websockets/WebSocketFrame.h"
 
 #include "wtf/CryptographicallyRandomNumber.h"
 #include "wtf/MathExtras.h"
 
-using namespace std;
-
 namespace WebCore {
 
 // Constants for hybi-10 frame format.
 // These are bitmasks for frame composition / decomposition.
 // Do not mistake these constants for the flags given to the WebSocketFrame constructor.
 const unsigned char finalBit = 0x80;
 const unsigned char compressBit = 0x40;
 const unsigned char reserved2Bit = 0x20;
 const unsigned char reserved3Bit = 0x10;
 const unsigned char opCodeMask = 0xF;
@@ skipping 48 matching lines @@
             return FrameError;
         }
         if (extendedPayloadLengthSize == 8 && payloadLength64 <= 0xFFFF) {
             errorString = "The minimal number of bytes MUST be used to encode the length";
             return FrameError;
         }
     }
 
     static const uint64_t maxPayloadLength = UINT64_C(0x7FFFFFFFFFFFFFFF);
     size_t maskingKeyLength = masked ? maskingKeyWidthInBytes : 0;
-    if (payloadLength64 > maxPayloadLength || payloadLength64 + maskingKeyLength > numeric_limits<size_t>::max()) {
+    if (payloadLength64 > maxPayloadLength || payloadLength64 + maskingKeyLength > std::numeric_limits<size_t>::max()) {
         errorString = "WebSocket frame length too large: " + String::number(payloadLength64) + " bytes";
         return FrameError;
     }
     size_t payloadLength = static_cast<size_t>(payloadLength64);
 
     if (static_cast<size_t>(bufferEnd - p) < maskingKeyLength + payloadLength)
         return FrameIncomplete;
 
     if (masked) {
         const char* maskingKey = p;
@@ skipping 80 matching lines @@
     , compress(flags & Compress)
     , reserved2(flags & Reserved2)
     , reserved3(flags & Reserved3)
     , masked(flags & Masked)
     , payload(payload)
     , payloadLength(payloadLength)
 {
 }
 
 } // namespace WebCore