Code problems detected by cppcheck

Source/platform/network/HTTPRequest.cpp

 /*
  * Copyright (C) 2011 Apple 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 42 matching lines @@
 
     // 2. Parse HTTP Headers.
     size_t headersLength = request->parseHeaders(pos, remainingLength, failureReason);
     if (!headersLength)
         return 0;
     pos += headersLength;
     remainingLength -= headersLength;
 
     // 3. Parse HTTP Data.
     size_t dataLength = request->parseRequestBody(pos, remainingLength);
-    pos += dataLength;
     remainingLength -= dataLength;
 
     // We should have processed the entire input.
     ASSERT(!remainingLength);
     return request.release();
 }
 
 size_t HTTPRequest::parseRequestLine(const char* data, size_t length, String& failureReason)
 {
     String url;
@@ skipping 35 matching lines @@
     , m_httpVersion(version)
     , m_requestMethod(requestMethod)
 {
 }
 
 HTTPRequest::~HTTPRequest()
 {
 }
 
 } // namespace WebCore